Ash I do think some people are slowing down with their schedule though. The yearly iPhone releases just aren't as exciting anymore before they're starting to lack ideas for new big features.
Because what else can you need it to do?
The cameras are better than the cheap digital cameras most people had before, the internet is as fast as most people have at home, and they are more powerful than a top of the line computer from just a decade ago.
Brighter screens, more battery, but I don't think there is any new 'feature' that people actually need at all.