I'm really looking forward to the new, system-wide "Assistant" voice control system Apple's rumored to be including in iOS 5. From the leaks, it looks like it might be implemented similar to Android -- a microphone button on the keyboard that you press to tell your iPhone or iPad you want to talk to it, then it takes your voice command or text entry, sends it to Apple's servers, and either does what you told it to do or types the text you told it to type.