Federico Viticci at MacStories:

I know what I would like to see in iOS 7 because I have been using iOS devices every day. Like every year, I have put together a list of new features, changes, and fixes I’d like to see in the next version of iOS. Some of them revolve around “big picture” concepts, some are more practical minor fixes, but all of them would contribute to improving my daily iOS experience. I think the following list contains ideas that aren’t too absurd – many of them have been appearing in pre-WWDC wish lists for years now. You can take a look at my iOS 6 article from last year to see how it went.

Read this whole piece, and take your time. Federico is exactly right on virtually every detail —and there are a lot of details.