Mac-using Facebook fans are going to be happy to learn about Facebook's experimental Desktop Notifications app. Desktop Notifications sits in the menu bar, and pops up notifications (using Growl if you have it) when they occur. It also gives you quick access to your news feed, profile page, and quick ways to update your status or start a new Facebook email message.

There are two things about Desktop Notifications that are compelling, yet have nothing to do with the app itself. The first is the fact that it's a native Mac application, rather than yet another Facebook client written on Adobe Air. The second is that it was actually developed by Facebook themselves [Update] Thanks to Raul and Nate for pointing out in the comments that the application is marked as "not developed by Facebook", though one of the developers listed works for Facebook. It's unclear at this point how serious this project is; it's clearly marked as experimental, which is clearly becoming the post-Gmail way of denoting that something is beta.

In terms of raw functionality, Desktop Notifications is pretty barebones, since most of what it does is take you to a particular Facebook page. Personally I kind of like it that way. It's relatively light in terms of memory usage, and uses virtually no CPU cycles at all unless you are actively interacting with it, which is exactly what I want from a utility that is running all the time.

My one beef is that the built-in hotkey that pops up a status update dialog box conflicts with another utility on my system, and there is no way to modify it. Since Desktop Notifications is still in the experimental stage, that's a pretty small complaint.

[Update] Commenter Scott points out that there is a preference setting to change the hotkey.

[via TechCrunch]

If you're a developer running the iPhone 3.0 beta, you may have gotten a special note in your email today -- and judging by the number of you who let us know about the news, there's plenty of those emails going around. Apple is testing the long-awaited push notification feature of the 3.0 software (and the back-end servers that provide the updates) with a build of the Associated Press news update app. If you got an email with a promo code and you've been putting the app through its paces, do let us know how it's going.

Push notification is all well and good, but what about true background processing for those critical applications that need always-on connectivity? More on the prospects for that capability in our next post, coming up shortly.

Thanks to everyone who sent this in.

[H/T to Engadget]

Former TUAW blogger Erica Sadun has a cautionary post for developers regarding the pending push notifications coming to iPhone OS 3.0: better get yourself some reliable servers. The implication, delivered via headline, is that smaller developers won't be able to afford push notification. Indeed, as Erica says, coding for an app that can run in the background is one thing -- you may need to scale things down a bit for resource management -- but deploying a reliable push notification system is a tall order by comparison.

Instead of coding once and deploying, developers will now have to manage servers to handle the load of users who will be receiving push notifications. This ongoing server maintenance issue is the sort of thing we used to laugh about when digg first started, or Twitter, or MySpace, or any number of services that grew a little ahead of server capacity. After speaking to one of the network engineers at Twitter during SxSW this year, I don't envy the task of staying ahead of these curves. But push, in my opinion, isn't as onerous as that.

Push notifications aren't serving entire pages. The difference in data throughput overall is much slimmer than even the light pages Twitter serves. Erica correctly points out that in aggregate, the push server might be hit pretty frequently; however, and there's more of a concern with reliability for a finance or medical app than something like Twitter or digg. But even when you throw in the added hurdle of security I'm guessing the resources for this are available at a reasonable cost.

I get that this is more work for developers, but Erica makes it sound a little threatening, like developers' only resolution will be to cobble together a mighty datacenter from spare computer parts. My assertion is that developers who wish to play the push game will simply need to look for outside resources and factor that into their price. Maybe fewer $.99 apps is a good thing? You certainly don't need 30 apps trying to alert you during the day -- how would you get anything done?

In the end, push notifications are welcome, and I'd rather have that than a one-hour battery life for the day. Plus, I would agree that some smaller developers will have to forget push because the potential costs are too high. Guess what? That's as it should be. If your product requires it, your cost should reflect it. There's no shortage of service providers out there, and as we've seen in the past (look at the podcast services that popped up when that blew up a few years ago) the market will fill the needs of the developers if they aren't in the business of making their own server farms. It's certainly a new twist to the iPhone dev game, and it's an opportunity for someone who can deliver a reliable push framework at a reasonable price -- perhaps one running atop Amazon's EC2, Google's App Engine or even Microsoft's Azure cloud service.

CrunchGear notes that a version of the iPhone Push Notification Service API has been released to "a handful" of developers, and, according to them, will "surely" be released to everyone when iPhone OS 2.1 is released.

If you remember our WWDC keynote coverage (around 11:05 a.m.), the Push Notification Service maintains a connection with third party servers to alert you via an icon badge, custom sounds, or text alerts.

An app that uses this feature isn't really running in the background, but instead sort of registering itself with a metaphorical "hotel operator" that lives in your phone. Once there's something new to tell you, the hotel operator notifies you.

Hopefully this has little effect on battery life, but without actual, real-world use, it's hard to say.

The latest version of Growl, the all-in-one notification app, has been released. 1.1.1 is available for download right now over on the site.

New to this version, you'll find speedier notifications, an improved Music Video style (which was one of the main complaints with the last release), improved iTunes notifications, and a few other bugfixes and improvements. Not a huge release by any means, but considering how much Growl pops up on my screen, even the little stuff matters.

Thanks, Peter!

When the Gmail Notifier emerged from its cocoon last August as the Google Notifier, the utility bizarrely introduced its own popup alerts for new messages instead of simply using Growl, which is arguably the standard in Mac OS X notification systems.

I don't know how we missed it, but Gmail+Growl stayed right in stride and released a 2.0 version to work with the new Google Notifier (in which case, shouldn't this be called Google+Growl?).

As long as you shut off the built-in alert system in Google Notifier, Gmail+Growl works well with the new utility. The one quirk I've found so far is that it doesn't seem to be pulling images from Address Book, and I don't know if this is a problem on my end or an update is in order. Either way, if you prefer Growl for all your system notification needs, Gmail+Growl should fit the bill just fine.

If there was ever a good reason to register a product like a notebook, being warned that it might catch fire, and getting the chance to avoid said fire, is as good as any in our book. We're receiving reports that Apple has begun sending emails to registered owners of iBooks and PowerBooks, announcing the recent recall and offering to get the party (of sorts) started. It would've been nice to hear this tactic being used when such a serious recall was first announced, but this is probably a good way to get the word out to any owners who might not keep up on Apple nerdery.

If your picture is hanging on eBay's 'Favorite Customers of All Time' award wall, this eBay Watcher widget might be just for you. As a powerhouse eBay monitoring tool, this widget has it all: up to three items can be watched at once, audio feedback for price changes and auction ending, Growl notifications, automatic refreshing at user-specified intervals, localized display labels for German, French, Spanish, Traditional Chinese, Simplified Chinese and Italian and even a world clock. Just about the only thing this widget is missing is a kitchen sink, though I'm sure an eBay widget could help you even with that minor setback.

One complaint I have about this widget is the explanation as to why you should register it from Hawk Innovations. Discussions about whether one should charge money for a widget aside, check it out: "Our demo version has a 50-50 chance of working. Make sure your widget works 100% of the time by registering now!" Cryptic as that may be, I think it deserves at least a few points for being one of the more... unique demo limitations I've seen.

So, a '50-50 chance of working' demo is available, and a license (which includes two machines) will run a mere $5. Hey: nobody said making eBay's 'favorite customers' wall was free.

If you're a Growl fanatic, or maybe iCal's alarms just aren't cutting it for you, a forum thread at cocoaforge might provide you with some options for getting iCal and Growl to shake hands. Discussion has included various methods of using AppleScript, hacking the innards of iCal and even replacing the GUI option of emailing a reminder with sending it to Growl. Either way, it doesn't sound like any of the methods are for the meek of heart, so if you don't feel like digging around in application bundles and AppleScript, you might want to wait for a prettier solution.

[via Hawk Wings]

The Gmail-Growl Utility that adds some seriously handy features to Google's official Gmail Notifier has been updated with a functionality face-lift and some fixes. It now has an option to toggle on/off Growl notifications for those times when you just need silence, and in Mac OS X Tiger you can now drag and drop notification field elements such as sender, subject and date, to build the actual notification you want to see (Panther users can still copy/paste text blocks to customize this notification).

Gmail-Growl Utility has also gone fully universal as long as you're using Google's latest Notifier version (1.8.2). It is also donationware (bonus points: the dev donates 10% to charity) and available from Waffle Software.

Call me crazy, but I think Google is using some kind of mental suggestion on me while I sleep, as I am slowly falling for their products one by one (maybe I should shut my Mac off at night so they can't get to me?). I've been hanging out at Google News more often, I haven't started Mail.app in almost a week in favor of Gmail, and now iCal has been kicked out of my Dock in favor of a Quicksilver trigger that takes me straight to Google Calendar.

That's right, as a .Mac customer and lover of 3-plus years, I am tossing iCal and its syncing ability aside for the innovative and ultimately easier to use beauty that is Google Calendar. Sharing calendars and events is so much simpler on the gCal side of the fence, especially since the invited guests can leave comments on the event right at Google Calendar without the need for some obnoxious service like Evite.

More to the meat of the matter, Google Calendar's 'Quick Add' takes the chore out of adding an event to my schedule, inviting me to do it a little more often to make I stay all the more on top of things. In gCal, I can hit the letter 'q' to open a small dialog box into which I can type an event name, time and date almost as if I were telling someone about it in an email: 'dinner with Jessi 6 pm 4/22' adds the event right where it should go. As icing on the Quick Add cake, date spanning works too: 'Half Life 2 Therapy Camp April 22-24' creates an event that spans properly. No obnoxious tabbing around to set dates and times right, and no mousing to drag little event boxes. Call me crazy, but I'm starting to believe that some desktop app developers could learn a few things from this kind of simplicity that is found in many of today's web-based apps and services.

Google Calendar's multiple and customizable notification features sealed the deal for me. Email, SMS and popping up the browser window (if gCal is open) are all available for various notification types like events, new, changed or canceled invitations, replies to invitations and even a daily agenda email reminder that sends you a roundup of the day's events. Hawk Wings points to a blog post by Jeff Hobbs who puts it quite nicely: "it’s like Google just hired a personal secretary for everyone on Earth." Sweet, I've always wanted a secretary. Unfortunately, there is one seriously lacking feature in Google Calendar's 'secretary factor': as of yet, there is no 'pick up a latte from Starbucks' option. Maybe someone can whip up a Greasemonkey script or plug-in?

Caffeine addictions aside, you can top this all off with the 'access and edit from anywhere' factor since Google Calendar is web-based, and Gmail automatically parses email for events to add to Google Calendar (*ahem* iCal/Mail.app engineers!), and I'm already forgetting what iCal looked like.

Growl is a utility that, like the drunkenbatman, has become a necessity in my daily work. As far as email is concerned, even though I can't bring myself to ditch Mail.app and Address Book completely due to device synchronization issues, Gmail has certainly found its place in my daily tool-belt as well. To my delight, the email notification utility by the name of Gmail Growl (which we've covered before) has been updated with a slick feature: the ability to click on a Growl message notification to be taken to that specific Gmail message in your favorite browser. The nice part about this is that you can specify which browser to use; you aren't simply limited to the system's default browser - handy, when you consider the fact that Firefox supports all the rich text editing options Gmail has to offer, while Safari is still lagging behind (disclaimer: I don't know if that's a WebKit or a Gmail issue, so don't flame me).

Gmail Growl can be had, for free, at the author's site. As usual with great freeware like this, I encourage you to make a donation to help keep great utilities like this alive.

[via Hawk Wings]