Shazam is one of the first apps I actually used in context on the iPhone, and while we haven't heard much about the app since it debuted way back in the early days of the App Store, apparently the company itself has been blowing up, thanks to the free app. They've picked up a nice round of investment from venture capitalists, and the service itself now boasts over 50 million users (by comparison, Last.fm claims only 30 million, but they've gotten way more press than Shazam's service, including recent integration on Xbox Live). That's a heck of an achievement, and Apple is a huge part of it -- not only did Shazam make a big splash on their iPhone app, but they say that Apple actually helped connect the VCs and the company together. That's an interesting peek behind the scenes at what Apple is doing for one of the App Store's oldest and most popular free apps.

As for why Shazam is so popular, the VCs say they can see the platform as a "springboard" for selling music, advertising, and a few other commodities. Currently Shazam's free app only lets you tag five songs a month (a limit I never hit and thus didn't know about, even though I would say that I do use the app regularly), but they're planning a paid version that will allow unlimited identification of songs through the iPhone's microphone. I don't know how well that will sell (it's hard to believe that people will pay $5 for a service they are already using for free, though perhaps I'm underestimating the amount of music that people want to "tag"), but it's clear that Shazam is a company that is making the absolute best of having an extremely popular free app on the App Store.

It was just yesterday that Apple announced they would allow free apps to enable in-app purchases, and developers are already jumping on the "get the app for free, buy the content later" business model as quickly as they can. ngmoco came out swinging, as Touch Arcade reports, with both a free intro version of Rolando 2 out for purchase, with later chapters of the game as add-ons. They've also been working on a shooter called Eliminate, and we're now told that title will be free as well, with extra content to buy later.

The creators of Urban Rivals, an app that is based on a virtual trading card game, have let us know that they too plan to go the free-with-microtransactions model as soon as their app is released, and though we haven't actually heard from Tapulous, Andrew Lacy told us outright that the only reason Tap Tap Revenge 3 had a 99 cent price tag on it was because of Apple's limitation, so we'll expect that app to go free as soon as it can.

Clearly, there's a drive for this model on the developer side, but the question will be just how much this echoes with consumers -- certainly the "download a trial, buy more later" model has worked well on other platforms, so we can expect it to work here on the App Store as well. But on the other hand, just as when the App Store first opened for business, it's a very "wild west" moment -- everybody and their brother is offering up in-app transactions, and they're all of varying prices and quality.

My guess is that we'll see a few "hits" -- a few free apps that everybody buys content for (Tap Tap Revenge 3 is a good guess; considering that because you know most of those songs, there's much less guessing on what the quality of the transactions will give you). At the same time, there will likely be apps that everyone agrees aren't worth the in-app purchase (it's the old story of "horse armor" when Xbox Live started doing microtransactions). Until we find a good balance, where quality meets price, odds are that it'll be tough for consumers to know just what's worth it, and thus tough for developers to convince them that their content is.

Here's yet another interesting take on the burgeoning App Store environment. A company called Gendai Games has a game creator IDE/app called Gamesalad, designed to let you put together rapid prototype-style games for the Mac. They've been doing this for a while, and they even let you export your games out to the 'net using an online portal. But here's the kicker: they're also planning to let you take those games right out to the iPhone.

Their roadmap page talks about downloading to a test iPhone straight from a Mac, but presumably, they'd either have their own app on the App Store in which you could play your games, or even output it to some sort of wrapper app that you could then release on the App Store yourself. Their press release says they will allow for games "to be sold and marketed on the App Store," and that seems to us like there's compensation involved somehow, either through their portal, or through Apple's setup.

Very interesting. Unfortunately, most of this is forthcoming -- their development environment is available for a free download right now, so you could start working on creating your masterpiece right away if you want, but you'd have to wait until sometime "in the next few weeks" to see what iPhone features they have planned. Part of the iPhone's draw as a programmer's platform is that it's relatively easy to develop for, and an environment like this promises to make it even easier and more accessible. Whenever you have a low barrier of entry to development, release, and sales, you end up with two things: a market possibly flooded with junk, but on the other end, lots and lots of creativity.

I, like many people, am constantly checking my email. No matter where I am, I'm either getting messages pushed to my iPhone or Mail is checking for new ones every minute. A new app is promising to make using Gmail and checking for messages much, much easier.

Notify, a new free application by Vibealicious Apps, puts a small button in your menubar of your Mac that keeps track of unread messages. The app, which was released less than 24 hours ago has already received over 3200 downloads and is quickly making a name for itself. Notify's developers consider it "like a menubar app, but better" explaining that the application boasts a much better user interface and much more functionality than traditionally found in menubar apps and buttons.

The application has a lot of cool features including:

• Support for multiple accounts
• Tabbed interface
• Growl integration
• Sleek, simple UI

The developer promises that Notify will continue to evolve, adding that the next major release of the app will support any IMAP email client as opposed to just Gmail. They're also working on support for Google Apps, in-app replies and the ability to create and send new messages directly from your menubar.

The app is also promised to be "freeware forever", according to the developer's twitter.

Some shots of Notify in action:

Another Friday Favorite, our weekly opportunity to gush over one of our favorite apps.

This week's favorite is a must-have reference for all Apple fans. Mactracker has been around for as long as I can remember and is indispensable. It provides exhaustive information on every Apple product, from the latest Xserve to the QuickTake 100.

The iTunes-like UI keeps machines in categories like desktops, notebooks, devices, etc. Click any to reveal a chronological listing of hardware, sorted by folder. Finally, select any piece of hardware (or software) to receive a tremendous amount of information. Processor, RAM, release date, benchmarks and on and on. You can even listen to the startup chime where applicable.

You can make smart folders and even keep track of the hardware you own. I love the built-in timeline, which lets you browse hardware by year of introduction. Best of all, as new hardware is added, Mactracker is updated.

This great piece of freewawre is availabe for the Mac and iPhone/iPod touch [App Store link]. For me, it's indispensable.

Activision has released Call of Duty for the iPhone... but don't get too excited, it's not exactly what you think. The first-person shooter hasn't quite been ported yet. Instead, they've released a "Call of Duty: World at War companion," which instead lets you track the activity on the popular World War II shooter game. You can track all of your ingame stats, and even follow your friends in the game and what they've done with their characters as well. And the app also comes with a news browser, to keep you up to date on the latest map releases and updates with the game. It's completely free, though you of course need a Call of Duty: World of War game for Xbox 360 or Playstation to actually get anything out of it.

In that sense, this app isn't quite so notable for what it is (World at War wasn't nearly as popular as Call of Duty 4, and this app is specifically about Treyarch's game), as what it portends: with Blizzard releasing their Armory app and a few other game companies releasing "companion" apps like this, we could be in for a very interesting holiday videogame season this year. Ports or translations of games don't do much to sell copies of the real games (as they tend to be either too similar or too different to the parent games), but "companions" like this can represent added functionality, and thus can do a lot to help and promote games on other platforms (imagine a Halo ODST app that sent you a push notification when your friend was playing or got a higher XP score than you did). This is far from the last we'll see of "companion" apps like this.

On July 20th, 1969, I was an 11 year-old nerd who loved space. Along with billions of other people in the rest of the developed world, I sat in rapt attention in front of the family TV set watching the ghostly figures of Neil Armstrong and Edwin "Buzz" Aldrin taking the first steps on the moon.

Now I'm a nerdy 51 year-old who still loves space. This weekend, my wife and I are celebrating the 40th anniversary of the historic Apollo 11 moon landing by presenting an Apollo retrospective at the Lookout Mountain Nature Center near Denver. If you're in the Denver area, drop by at 7 PM on Saturday, July 18th to learn more about the incredible challenges that were surmounted by the U.S. space program to land men on the moon and return them safely to earth.

For the majority of you who aren't in the Denver area, there's another way you can celebrate on Monday, July 20th, 2009. On Monday, Carina Software will offer free download-only versions of their SkyGazer software for Mac OS X on the Carina website. iPhone and iPod touch owners won't be left out of the fun, as Carina's SkyVoyager app will be free on Monday from the App Store.

Be sure to pass along the information to your friends and join in the free fun on Monday!

[via The Mac Observer]

Last week, Handmark announced the release of Astraware Solitaire [App Store] for iPhone and iPod touch. Solitaire features a dozen different games, including the classics Klondike, Free Cell, Canfield, and Pyramid. As with most of Astraware's games, the 12 solitaire games are nicely animated, easy to play, and hard to master. The game is currently on sale for just US$0.99, so grab it before it goes up to the normal price of US$4.99.

I personally love playing solitaire as a way to pass time on planes and while waiting for meetings to start. After installing Astraware Solitaire on my iPhone 3GS, I erased four other solitaire games that just didn't match up to the quality and variety of play. The new Trophy Deck feature will keep you playing for weeks, trying to collect all of the cards by achieving goals.

Since it's Independence Day here in the U.S., you might also want to download Handmark's free fireworks app, featuring patriotic backdrops, festive fireworks, and music. From all of us here at TUAW, have a safe Fourth of July weekend!

Ever wanted to order a bunch of coffee and doughnuts along with your friends online, and then go and pick them up in the store? There is, in fact, an app for that. Dunkin' Donuts has released Dunkin' Run (iTunes link), an app that not only connects you and your friends together (through a strange love of pastries and java), but will allow you to set up an order and then go straight to the store and pick it up.

Sound unnecessary and lame? Maybe -- though it is free, even if it's adware as adware can possibly get. And apparently the app is really badly designed, not to mention that we do feel a little dirty telling you about it: you should probably eat something a little healthier, like a banana or even an (wait for it) apple.

But let's not forget where we started out here -- back in the day, we dreamed of ordering coffee on our iPhone, and now that day has basically come. Unfortunately, the best parts of the dream haven't yet materialized -- Dunkin' Runs only lets you tally up orders among your friends, not actually deliver them to the store. For that, you've still got to show the cashier your iPhone screen, and/or read them off the order. But it is a step closer to the dream. If companies are going to make apps that are actually useful for us, they have to start with apps like this, no? And if nothing else, it's an app that will tell you where Dunkin' Donuts is -- that's all I use my Bank of America app for anyway.

Sometimes you have to use Windows. Supporting clients in multiple-OS environments makes this a necessity for some Mac users, while others want to run applications that are available in Windows only. You can get a preview of the latest flavor of Windows, Windows 7, by running Release Candidate 1 of the new OS either in a virtual environment such as VMWare Fusion, Parallels, or VirtualBox, or in Apple's own Boot Camp. Christina did a thorough rundown of the options for running Win 7 on Mac back in January.

Of course, you may not own Fusion or Parallels, and perhaps you don't want to have to boot into Windows separately. In that case, you can download a copy of Sun's VirtualBox application (it's free) and then download a copy of Windows 7 RC1 from the Microsoft website (it's free, too!). Follow these detailed instructions or watch the video, and you'll have a free way to test Windows 7 until at least June 1, 2010. Windows 7 will shut down after every two hours of use after March 1, 2010, which is Microsoft's subtle way of telling you to buy the OS or update to a later build.

If you're a VMWare Fusion user, the VMWare team has instructions and a video available here. Want to try out Win7 RC1 with Boot Camp? There are instructions here. For Parallels 4 users, I was unable to find a good set of instructions, so if any TUAW readers can provide me with a link, I'll update this post.

How is Windows 7 RC1 as an operating system? It's faster than Windows Vista on my 3 year old iMac, and some features look surprisingly Mac-like. I'll leave it to you as an exercise to see how much you like or dislike it.

Two new apps both provide the same service to iPhone users -- sending postcards to U.S. addresses from your iPhone. I'm not talking about virtual electronic postcards; instead, these are real postcards that are printed at a location near your recipient's address, then delivered by the U.S. Postal Service. All you need to provide is a photo taken by your iPhone, the address(es) of the recipient(s), a personalized message, and a credit card number.

The two programs are both free, although there is a cost to send those postcards. Continue reading this post to learn more about Go Postal and TapTap Cards.

FileMaker Pro fans can now tweet and make Skype calls directly from databases, thanks to a pair of free files from FMWebSchool. There are a couple of movies that demonstrate how these files work, which you can view by clicking the links below.

The FMSkype file allows you to import your Skype address book into a FileMaker Pro database (Windows only; Mac FileMaker users must manually import their Skype info), and then click to call a contact using their Skype name or phone number.

FMTweet lets you send messages to Twitter from a FileMaker Pro database. This is not a plug-in; it's a database with associated scripting that can be customized by the user. FMTweet could be useful if you want a database to provide notification of a specific situation through Twitter -- for instance, send a tweet when someone enters information into a web-enabled Filemaker database.

To get the two files and other FileMaker goodies that may come out in the future, you do need to subscribe to the free FMWebSchool newsletter.

OmniGroup has announced that they have decided to release several of their previously shareware applications as freeware. These are: OmniWeb, one of the first Mac web browsers with roots going back beyond even OS X; OmniDazzle, a fun screen effects application, potentially useful for presentations and screencasts; OmniDiskSweeper, a very useful utility for getting a handle on large files taking up disk space; and OmniObjectMeter, a developer tool for optimizing memory usage in OS X application development.

Apparently the reason behind the decision is simply that Omni wants to focus more on their other applications and these four were not worthy of as much attention. They don't rule out future updates, but it doesn't really look that likely.

For my own part, I can't help but think that OmniWeb's day has passed, but OmniDazzle and OmniDiskSweeper are still useful tools (not being a developer I don't have much to say about OmniObjectMeter). In any case, it's a nice gesture to the Mac community from one of its older members.

All four applications are free downloads from their respective pages: OmniWeb, OmniDazzle, OmniDiskSweeper, OmniObjectMeter.

[via Daring Fireball]

My colleague Robert Palmer has reported that HearPlanet [app store link] is free for this week, so I downloaded and gave it a try. It is a nice surprise. HearPlanet for the iPhone and iPod touch is a pretty cool mash-up of detailed local information so you can search for a city, for example, and HearPlanet will tell you about all the things that are around you. There is detailed text, or better yet it will read the information to you.

Those with a 3G iPhone can use location services. HearPlanet will figure out where you are, and what things of interest are around you. The app finds items like museums, stadiums, zoos, and other landmarks or popular attractions. You click on one of the destinations, and the app starts reading about it. Some of the entries are short, others are quite detailed.

When you tap the play button HearPlanet switches you to speaker mode so you can share the information you're getting. It also makes it nice for car travel.

I wondered where all the information was coming from, and quickly found that most of the entries match the information in Wikipedia. In fact, if you scroll to the bottom of each text entry, the source of the information is identified. This has apparently confused some users of the app who thought the information from Wikipedia was stolen, but it is all properly identified and sourced.

Happily, HearPlanet is not U.S. only. There is plenty of information on destinations all over the world.

HearPlanet is not a complete travel app. There are no phone numbers and no links to Google Maps for directions to destinations. But it has lots of details on things around you that are worth visiting, and you'll certainly learn something in the process.

Now that I'm firmly situated in my hotel suite in San Francisco, it's time to get ready for Macworld Expo 2009. A couple of weeks ago iMacworld (click opens iTunes) was announced by IDG and Zami.com as an iPhone helper for Expo-goers.

Version 1.1 of this free app is much improved, with a finalized list of exhibitors, products, and sessions. There are also small banner ads at the bottom of each page that load quickly and give booth numbers for the products advertised. The update also features "stability improvements", although it locked up my iPhone 3G once when I tapped on the link to find a vendor location on a map.

iMacworld is definitely going to be a help as your TUAW team navigates around the Expo to find new and exciting items for you. Be sure to stay tuned all week as we provide coverage of everything happening here in SF...and more!