Some of the iOS SDK features that were quickly touched on by Craig Federighi today sound fascinating, although we won't get details on some of them until later. Here are some that I found to be the most interesting:
New multitasking APIs -- this should enable that y ou use most often to update themselves in the background
Secure Game Center scores -- as Erica Sadun pointed out, people know how to hack the leaderboards right now; this may eliminate that
MFi Game Controllers -- this is HUGE for gaming. MFi, of course, means "Made for iPhone/iPad/iPod", and this API should make game controllers that work with our devices become more prevalent.
Dynamic Type Size -- Devs can build in user-directed font scaling so us old folks can read our Helvetica Neue Ultra Light in BIG lett
