A multiTouch Final Cut Server client?
There’s lots of room for buttons on the iPod Touch home screen. How about:
Final Cut Server client: Stream the current version of an FCP project. Make selects and simple edits (a la iMovie 08) on an FCP project on a server somewhere using a gestural interface
AppleHome: stream my 100GB+ collection back home to me whenever I have Wi-Fi access
Sling-Pod: stream my TV tuner signal to me