If you could magically ship something with the iPhone 5, what would it be?
The market is in no way stalling out, but really, the next "obvious" hardware feature isn't so obvious anymore. Putting these in the hands of five billion people is what's next.
http://www.youtube.com/watch?v=6668cxupH98&feature
The fact that nobody at Fox questioned it before the reportage aired is a sign of two things:
1. Fox News isn't the pinnacle of journalism, to put it mildly (seriously, how can the whole team miss the almost over-published iPhone 5 announcement details and instead find a old mockup video?).
2. Technology has come a long long way when holographic images are just considered a "cool new feature" by the average Joe. It's amazing how fast technology has changed our lives, what was total magic just ten tears ago is almost taken for granted now.
Of course some of these are available as third-party apps and apis. Some would suck (widgets for one probably). But I don't believe we're anywhere near running out of things to innovate on to make mobile computing worthwhile/suck-less.
Both Android and WP are much better in this regard but there's still a lot of room for improvement.