iOS 7 phases out the iPhone 3GS and the original iPad; some features will be iPhone 5 only

Apple on Monday took the wraps off of iOS 7, its highly anticipated next-gen mobile OS for the iPhone, iPod touch and iPad.

Apple said that iOS 7 will be available as a free download this fall and will run on the following devices:

• iPhone 4 and above
• iPad 2 and above
• iPad mini
• iPod touch, fifth generation

So with iOS 7, Apple is phasing out the iPhone 3GS. The original iPad was phased out with iOS 6 (thanks, Ben!) I'd be surprised, though, if there are a significant percentage of iOS users using the aforementioned device. All in all, Apple does do a decent job of keeping iOS users running years-old hardware in the mix.

Aside from which devices will run iOS 7, it's equally important to consider which features from iOS 7 will run on which device.

To that end, here's how some of the device-specific iOS 7 features break down.

Panorama -- The photo feature Apple introduced last year will be available on the iPhone 4S, iPhone 5, and fifth-gen iPod touch. iPad users are out of luck here.

Square/Video formats and swipe to capture -- These features will be available on the iPhone 4 and above, the third-generation iPad and above, the iPad mini and the fifth-generation iPod touch.

Filters in Camera - This Instagram-inspired feature will only be available for the iPhone 5 and the fifth-generation iPod touch.

Filters in Photos - This will be available on the iPhone 4 and above, the third-generation iPad and above, the iPad mini and the fifth-generation iPod touch.

AirDrop - AirDrop in iOS 7 will only work on the iPhone 5, the fourth-generation iPad, the iPad mini and the iPod touch.

Siri - Siri in iOS 7 has new voices, a new interface and a whole lot more functionality. Users trying to take advantage of the latest and greatest from Siri can run it on the iPhone 4S and above, the iPad with Retina display, the iPad mini and the fifth-generation iPod touch.

iTunes Radio - Apple's long-rumored music streaming and recommendation service will run on any iOS 7-compatible device.

Data source: via TUAW (By Yoni Heisler)