Apple users are embracing the App Economy with abandon. Indeed, by 2015, income from apps will exceed that of iTunes music downloads, one analyst projects.

Here’s the handsome new login screen in the update to OS X Lion Developer Preview 4, that Apple released on Wednesday afternoon.

It’s a dark linen motif, and it’s used in several places in the Lion and iOS 5. We got  sneak peek of this color scheme during Steve Jobs’ presentation at WWDC. Now it has been rolled out to developers, and soon to the public. Who’s excited?

Here’s screenshots of some other new stuff in the update (Build number 11A494A). Lion is shaping up nicely:

Last night, Apple released Airport Utility 5.5.3, a minor bug release update for both Apple’s AirPort Extreme base stations as well as Time Capsule. More interesting, though, is reference within the update to incoming updates to Apple’s two wireless routers. Are these the iOS-running, A5-equipped Time Capsules we’ve been waiting for?

A full week has passed since WWDC, and yet we’re still finding little gems inside iOS 5. The latest finding is that the improved Calendar App allows creators of events to invite people to attend, and then see who all is coming once they’ve responded. The new magic is all made possible with iCloud. Here’s how it works:

Over at GigaOm, Alex Layne asked the question: if Apple killed the Finder, would you miss it?

Hell yes. Yes I would.

We’ve often remarked how important iTunes and the App Store is to Apple’s future. Begun as a way to sell digital songs, the iTunes ecosystem now touches every device from the Mac to the iPad. Turns out, the Cupertino, Calif. company pumps more than $1 billion into the service each year.

We raved about how cool the new hard button for shooting stills using the Camera app is, and we’ve even shown you how to use it. But guess what — it works with video too.

That’s right, in iOS 5, you’ll be able to start and stop shooting video just by tapping the volume up button,  the same one used for shooting stills.

Mobile is the future. Despite App Store integration in OS X Lion and Apple’s increased excitement about the Mac, the number of iOS developers also working on Mac applications has dwindled to single digits.

Since Apple started popping out the first mouse to be packaged with a personal computer with the Macintosh back in 1984, designers have been trying to find alternatives to the ubiquitous rodent. Apple itself seems to be out front in terms of interesting creations, experimenting on their mice with intriguing, if not always satisfying results. In this case, Smartfish, with their Whirl Mini laptop mouse ($50), have focused on perfecting the ergonomics of the mouse instead of trying to reinvent it. Did they pull it off?

Now that WWDC is over for another year and we’ve put all the excitement behind us, this coming week is going to be a little dull without something good to keep us entertained. Thankfully, our list must-have games is here to help. This week’s roundup features Dream:scape — the latest eye-popping game to use Epic Games’ Unreal Engine; 1000 Heroz which promises a new adventure every day you play; plus more great titles that are guaranteed to please.