[mjs00]

Also maybe consider dropping:

> App state is saved when stopping the app and restored on next start

I believe you get this for 'free' with IOS 4 and greater, as the app now never stops, it just suspends to the background when you switch between apps.

[Mavrik]

Not if the device runs out of memory or on older iOSes. You should always address this case.

[mjs00]

I didn't consider out of memory condition, thank you. I wasn't worried about older OS as practically speaking there are not that many folks on IOS 3 or older, at least based on stats I've seen for iPhone. I don't specifically target iPods, so maybe there are more of those at 3 vs iPhone. Thanks again - great list!

[abscondment]

Even on iOS 4, the iPhone 3G doesn't support multitasking.

[mjs00]

Good point - I seem to have forgotten that as well as I considered 3GS or greater to be my target. So it is a good point to consider for usability, depending on the app. But FYI, at least in my app's case, it wasn't a determining criteria or test in order to pass app store review.