I like technology to support a nuclear battery capable of powering the iPhone for 2 years without charging, all in a size that fits the current model...
Just need an isotope that has a half life near two years and cram enough into a beta battery...that and for terrorists to swear never to use it for dirty bombs...
Seriously though, I'd love to see a notification light that is hidden in the case, as well as gesture based controls.
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You guys are setting yourselves up for disappointment again. It'll be a new "revolutionary" processor and camera upgrade with the same exact phone body/screen/OS. The best predictor of the future is the past, and Apple has had 0 innovation to get excited about in the last 3-4 years.
That's a given seeing as its an "s" model coming...faster is ALWAYS appreciated.
Edit: I'd be an iPhone forever kinda fan if they got away from mechanical push button and lack of gestures. I love my 4s when jailbroken because of the tweaks that allow me to use my home button just to wake the phone. I love swiping here and there to do various tasks.