Just when you thought it was safe to buy a nav app for the iPhone, Google goes and announces a free app for Android, and says it's going to be available for the iPhone if Apple will let it into the App Store.

The app, called Google Maps Navigation, will ship with phones running the Android OS 2.0 and includes search by voice, search for points of interest by voice while in route, satellite and street view, and support for a hardware dock for 'certain devices.'

This won't be great news for TomTom, Navigon, or any of the rest. Google says the app is U.S. only for now, and will be seen first on the Verizon Droid which will appear in November.

Talk about disruption! With the FCC watching it will be most interesting to see if Apple allows the app onto the iPhone and, whether yes or no, the effect on Android sales.

I can't wait for all the fur to fly. You can watch a video of the app in action in this YouTube clip. Admit it. You want this!

Several of our readers suggested that we take a look at Waze, a free navigation app [iTunes link] that depends on other users for reports of traffic tie ups, accidents, and speed traps. It also functions as a turn-by-turn navigator with spoken directions, although it doesn't have text to speech capabilities for naming streets or points of interest.

As a navigator Waze is fine, but it seems to be missing a lot of residential addresses. Waze had a nasty habit of jumping my vehicle icon to a nearby parallel street, and while it was nice to have both 2D and 3D maps, the software seemed to change the zoom factor without me telling it to. This erratic zooming seemed to happen when I went to a menu and then returned to the map.

The maps aren't very attractive. There are both day and night views for the Waze maps, but even when set to 'auto,' the night map comes up no matter what time of day it is. The maps and POI data are all downloaded from the internet, so if you're in a "dead zone" for data, you have no navigation.

As for the social functions of the app, they are a great idea, but in reality you're only going to get information in a densely populated areas. Even then, you may not get much of anything in terms of reported incidents. If you go to the Waze web page and look at the national map for reported incidents, it is pretty lightly populated. Of course, that should get better as more and more people use Waze. A clever aspect of the app is that it keeps track of where you are while you're navigating, and uses your speed to add to its database of road conditions.

I think Waze is promising, and if you don't want to spend money on a turn-by-turn nav app, it's a start. To be really useful some of the bugs need to be fixed, the address data needs to be more complete, and there need to be a heck of a lot more people using Waze so there is more incident reporting.

This app is free and implements some creative ideas. If you're thinking about getting a nav app, but you're on the fence, make the risk-free download of Waze and see if it enhances your driving.

MapQuest is now offering a GPS navigation system for iPhone users in the U.S. and Canada. MapQuest Navigator [iTunes link] is U.S. $0.99 for a 14 day trial. After than you have to buy it for $3.99 a month, $9.99 for 3 months, or $29.99 a year.

According to the company, key features include:

• Streamlined 3D Interface: Features voice-guided, turn-by-turn navigation that speaks directions and street names.

• Regular Data Updates: Search 16+ million points of interest and utilize up-to-date street maps.

• Full Route Corridor Download: Quick route re-calculation for missed turns as well provides continued service in areas of no cellular coverage.

• Traffic Incident Based Routing: U.S. routes are optimized to avoid traffic incidents that might delay your travel.

• MapQuest Place Carousel: Easily displays locations for hotels, movie theaters, gas stations, and more with a single tap.

Most of the data for the app comes over the internet, so MapQuest Navigator has a small 2.9MB footprint. If you'd like to see a video demo of the app, go here.

We've asked for a copy so we can put it through our rigorous review trials and compare it to the other systems we've used, so more to come.

Users have been begging for it, and now Navigon has updated the Mobile Navigator [iTunes link] app to read street names to you as you drive.

I've tested the app around town, and it worked well, and the speech is clear and easy to understand. Here in Arizona, a lot of the street names are Spanish, and in most cases, the app pronounced them correctly.

It meant that I could drive around getting navigation instructions without ever looking at the iPhone screen, which is a real safety improvement.

Navigon has also added good iPod control functions. You can add new playlists or tracks, and listen while you are using navigation. This is an option that must be turned on, so if you want the function, be sure to do so.

I also like that the app now knows when it is night time and switches the display accordingly. Again, this is a feature you can use, or disable.

When I updated, the old version of the app was completely replaced, and the new app is 1.44 GB, so make sure you have the room and the time to get it downloaded.

Other features added to version 1.2.0 include the ability to email a destination to another Navigon user directly from the app. If the person gets the mail while on an iPhone and taps the location, it will launch the Mobile Navigator app and set the app for the forwarded destination.

Navigon has said the app would be US$99.00 the first of September, but the price is $89.99 instead, keeping it just under the $99.00 TomTom app, and reflecting, I think, how competitive navigation apps are getting with each other.

The company has also announced a car kit available in October, but few details and specs are known. This is the second update to Mobile Navigator since it has been released. Navigon says more updates will be coming. Traffic info and weather data would be nice.

In my view, with text to speech, Navigon has pulled ahead of the pack. I'd still like to see more points of interest in the database, and of course multi-tasking would be nice, but that is an Apple issue, not a Navigon issue.

I like this app, and it has been aggressively updated. Check it out if you are looking for nav, and if you already have this app, get on with the update.

Since its release in late August, the TomTom for iPhone [iTunes Link] application has received a lot of attention. When the application was first debuted at WWDC, it became one of the first products to combine both hardware and software for the iPhone. The car-kit (which provides a separate GPS module for enhanced positioning, connections for audio and iPhone charging capability) was expected to be released alongside the app.

More information was then leaked after TomTom's car kit was seen on the FCC website.

It looks like TomTom has decided to delay the release of the car kit until October to "deliver the highest quality innovative product." In a small note on their website's FAQ page, TomTom announced:

The TomTom car kit availability was originally planned for this summer. But we have decided to take some extra weeks in order to deliver the highest quality on this innovative product. So, the car kit will become available this October on www.tomtom.com.

There are now many GPS apps available for the iPhone, but much of the excitement and anticipation for the TomTom version stems from its inclusion of a bundled accessory. We'll see how sales do when the car kit is released later next month.

While many have been waiting for the TomTom hardware/software combo for the iPhone, Navigon has delivered a very appealing app for the iPhone running version 3.0 of the OS.

MobileNavigator [App Store] has a striking on-screen display, with many features lacking in some of the other products that are out there. Unlike the AT&T Navigator and the G-Map apps, MobileNavigator allows you to access your address book for destinations. It works in landscape or portrait mode, and can warn you if you are speeding. It does not have any traffic info, and you can't call any phone numbers that are in the POI (points of interest) data base. A take me home function is done with a single click.

All the maps are loaded on your device (1.29 GB) so going out of range of an AT&T cell site is not a worry. If you get a call, the guidance stops, but resumes automatically when you conclude the call.

Maps can be 3D or 2D, and the 3D maps look great and closely mimic what is on the road in front of you. The voice directions are quite clear, in contrast with the AT&T app, which is garbled and pretty much a waste.

So how is it on the road? Pretty nice. I got a quick GPS lock. If for any reason you lose GPS, in a tunnel for example, you get a red bar across the top of the screen.

You can display POIs along your route, and many of the icons have company logos like Best Buy, most of the gas station logos, even Quiznos.

If you are navigating the next street to turn on is at the bottom of the screen. If you are not navigating, you see the street you are on. At the top of the screen you get the arrival time if you are navigating. Touching that part of the display will give you your speed, and another touch gives you the distance. Many streets alert you to the speed limit, and if you go go over, you can set a warning.

Intersections on highways are handled very well, with nice big road signs and clear directions of where to go. The voice directions come at the opportune times, and do not nag, the way the AT&T app does.

At my location, southern Arizona, the maps were complete and there were far more POIs than provided on the G-Map application.

Many months ago I received a review copy of G-Map for the iPhone. It had its own maps and turn by turn directions, but no voice guidance, and North was always up. Apple was limiting nav apps at that time, and I had real trouble with G-Map. I couldn't load it on my iPhone. It kept locking up about halfway through the process. Extensive back and forth with the developers in Japan came to nothing, so I gave up. Finally, last April, my colleague Steve Sande was able to load it, and reviewed it for TUAW.

Now, with iPhones having new hardware and new software, G-Map [App Store] works and is certainly a competitor to the subscription-based AT&T app. You buy G-Map in one of several editions. G-Map West, at US$34.99, covers the Western States, and G-Map East covers, you guessed it, the Eastern U.S. It is also priced at 34.99. It gets a bit tricky, because some states like Illinois, Michigan, Tennessee and Wisconsin are split. If you travel all around those states you will probably want both editions.

There is also a California edition for $19.99, and one at the same price for New Jersey and New York. Versions for Canada and Europe are coming. All the G-Map modules require iPhone software version 3.0.

So how does it work? Pretty well, but with some caveats. It's accurate at getting your position. The voice directions are quite audible, especially compared to the distorted AT&T app. The on-screen display gives you your speed limit, distance to your next turn, distance to destination and time to destination. It also plots major intersections in a very detailed 3D view, which is helpful. This works in the largest 185 metro areas.

Another plus is that all the maps are on your phone. If you slide out of AT&T's service area the maps are still there; in contrast, the Telenav-based AT&T Navigator app will not work if you don't have data coverage, as the maps are downloaded on-demand.

There are some downsides. The POI database is pretty thin in smaller towns. From Southern Arizona it couldn't find the Phoenix Airport. It probably would have found it when I was closer, but even a POI search didn't bring it up. As I was sitting at a long established car wash, it said no car washes were nearby. It did better with restaurants, banks, and hospitals. Like the AT&T app, there is no landscape mode, and you can't get access to your address book, which is just plain silly.

It looks like the database, which comes from Navteq, has some errors, as do all such systems. Navigating to a restaurant, G-map reported it was on the left, when it was actually on the right.

Unlike the AT&T Navigator, G-Map has no real time traffic, but it does provide info from Navteq's traffic statistics to predict trouble areas.

Even with some weakness, G-Map is a worthy competitor to the AT&T iPhone app. If you have the room on your phone (G-Map West is 824 MB), you can navigate without worrying about cell network access.

It's cheaper than a monthly subscription would be over time, although there is no word when maps will be updated and what the cost will be. If the G-Map developers clean up the POI database, and add a lot more to it, I think they may sell a lot of apps. As it is, for getting to places where you know the address, it works about as well as the AT&T Navigator at a fraction of the cost. Of course more choices are coming, including the much discussed TomTom app, so you may want to wait it out and see what other offerings come along.

Here are some screen shots that show some of the major features:

It looks like our European friends will get first crack at an advanced turn-by-turn navigation app for the iPhone/iPod touch. MobileNavigator Europe [App Store] requires the 3.0 software, and looks to be fully featured:

• 2D and 3D map displays
• Can be used in portrait and landscape format
• Branded UI features such as Reality View Pro, Lane Assistant Pro & "real signpost display"
• Speed Assistant with adjustable audio-visual warning
• Direct access and navigation to contacts saved in the iPhone's address book
• The latest NAVTEQ maps, 2M+ European POIs (points of interest)
  
• Navigation is automatically resumed after an incoming phone call
• Quick access to user-defined POIs in the area and along the route
• Take Me Home function with a single click

This software is the first of several apps coming for the iPhone. The TomTom app that will work in the U.S. has been demoed and coming soon. Garmin, one of the premier GPS manufacturers is going the other way, and will release their own phone with navigation built in, but the project has been troubled and much delayed. Telenav has pre-announced its iPhone offering and suggested that customers keep an eye on the company's Twitter feed.

The Navigon app is US $94.99 (!) this month only, then the price goes up (!!!). The Navigon website doesn't yet show a list of the supported countries, but it's displayed in iTunes and is quite extensive (Albania to Vatican City with Estonia, Macedonia, San Marino & Slovenia + more in between). The app supports ten different languages and will automatically switch based on the selected language for the iPhone itself. The download weighs in at 1.65 GB.

This quick release of high quality navigation software should set mouths watering for a release over here, but I'm a bit troubled by the pricing, as you can buy a pretty fully featured low-end navigator for only a few more dollars.

Update: Our readers have also mentioned Gokivo, with a continuing US$9.95 a month subscription, and Sygic, which provides turn by turn navigation in Austrailia and New Zealand.

Thanks to Gaspare for the original tip and our alert readers for more suggestions!

During the discussion earlier in the year about why Apple was blocking turn-by-turn GPS navigation apps for the iPhone 3G (it will be "legal" in iPhone 3.0), a reader pointed out that there have been a pair of turn-by-turn navigators in the App Store for quite a while.

Upon following the reader hint, I was surprised to find that XRoad G-Map US West (click opens iTunes) and East have the United States covered for navigation. These apps, US$24.99 each, don't have the voice prompts that most of us appreciate, but they do provide surprisingly accurate directions and a 3D navigation view that rivals the more expensive Garmin, TomTom, and Magellan dedicated navigators.

European and Canadian versions of the app are expected to be released by the end of this quarter, while Central / South America and Asian versions should arrive by the end of 2009.

Since I am the resident GPS geek at TUAW, I decided to give XRoad G-Map US West v1.3 a test drive and see how it performed compared to my Garmin nüvi navigator. While the XRoad product has some shortcomings, it's still worthy of a look if you're thinking about purchasing a navigation app. Click Read More to see how G-Map worked...or didn't.

If you've been listening to all the clamoring on Twitter, or perhaps have seen the updated Apple page, then you know there was an iPhone event today to discuss a new version of the iPhone OS, version 3.0. While you will have to wait until the summer to get the new version (unless you join the developer program), Apple showed off over 100 new features that we're all excited about. iPhone developers are also getting some love from Apple with over 1,000 new APIs.

Some of the biggest updates include:

• Push notifications will be standard in iPhone 3.0. Apple claims that there was a scaling issue when they first announced this feature last year, with thousands of developers clamoring to use it, so it had to be delayed. Developers will be able to build message, sound, and badge alerts into their applications.
• iPhone will support cut, copy and paste -- copy text and pictures, then paste them in any application on the device. If you change your mind about the newly pasted data, just shake to display a menu asking if you wish to undo the paste.
  
• In-App purchasing -- developers will have the ability to charge a fee from within the application for more levels in a game, magazine subscriptions, eBooks, etc. This solves the problem of the 20 ebook readers that only allow you to read one book each.
  
• MMS -- you'll be able to use MMS on your iPhone 3G (yes, 1st gen iPhones will not get the fortune of using MMS due to the use of a different cell radio). The new Messages application will be taking the place of the SMS app and will allow you to send voice memos and pictures to your friends.
  
• Peer-to-Peer connectivity -- allows iPhone apps the ability to find other iPhone users over WiFi or Bluetooth. This can be using for anything from gaming to sharing data.
  
• Third-party Accessories -- app developers can now access third-party accessories attached to the iPhone. This could allow for developers to interface with their own accessories to create a truly unique experience on the device. One of the demonstrated uses was a prototype blood glucose meter for the iPhone, from a Johnson & Johnson subsidiary, which is already getting attention from our readers; it's not for sale yet!
  
• Apple will now be allowing applications the ability to get GPS coordinates from Core Location and turn that into software that provides Turn-by-Turn directions for iPhone users. However, due to the terms of use with Google maps, developers will be required to license their own maps for this use (meaning that Turn-by-Turn GPS applications will almost certainly be paid apps). This isn't a problem for vendors like TomTom or Telenav, who already have licenses for their map data.
• A landscape keyboard option is now available in all iPhone applications, including the infamous Mail.app.
• Voice memos will allow iPhone users the ability to capture audio and then email it, or send it through the Messages application as a multimedia message.
• System-wide Spotlight searching is built right into the home screen. To the left of the first home screen, there is a magnifying glass, so by flicking to the left of the first home screen will show this search app. You can search for anything, including mail, music, and notes. There is no word yet on how this will interface with third-party applications.
  
• Stereo Bluetooth audio devices are now supported through the use of A2DP technology.

iPhone owners should note that A2DP technology and the use of MMS will not be available on 1st generation iPhones. This is probably due to the iPhone Bluetooth spec used, and Apple has confirmed (during the Q&A session after the keynote) that MMS is not available because of the cell radio used.

iPhone OS 3.0 will be available for regular users "this summer." iPhone developers will be able to get the beta of OS 3.0 sometime today -- Apple is still busy updating their iPhone Dev Center, but we'll let you know when it is available.

One of the most elusive and desired apps for iPhone is turn-by-turn GPS navigation. Just before the iPhone 3G hit the market, we heard that TomTom was developing a GPS navigator. To date, it hasn't shipped. Recently, the focus has been on xGPS, an app that requires a jailbroken iPhone to work.

Since Apple says a) jailbreaking may be illegal and b) the terms of the SDK prohibit "real time route guidance," it seems like it may be a long time before we see legal turn-by-turn on the iPhone. This week, though, there was some light at the end of the GPS tunnel.

At Mobile World Congress 2009 (MWC09) in Barcelona, Spain, Sygic is demoing a version of their namesake GPS navigation software running on an iPhone 3G. According to a post on The iPhone Blog, the Sygic software uses maps from TeleAtlas, the same company that supplies map data for Google Maps. Sygic produces similar software for Windows Mobile and Symbian devices.

From the screenshots in the post, the app appears to be similar to what many of us are used to with our TomTom, Garmin, and Magellan car navigation systems. Whether or not Sygic will be lucky enough to get this one into the App Store is unknown, but this app is definitely worth watching.

Thanks to Topper for the tip!