What about a designing game? Since everyone's talking about the minority report-style interface, they should take advantage of it. Say each level is some kind of puzzle and the player has to create an object or machine using the game's toolset that can solve it. You can select a tool using a mid-air tap, scroll, zoom in and out by bringing your hands closer or farther apart, rotate an object by turning your hands, etc. Think Tony Stark's design table. If they got a really amazing game designer to create the puzzles I think it would be awesome.
Currently playing: Gran Turismo 5
Just finished: Infamous 2







