I've said this a million times. Natal is not meant as a replacement of current controls, but as an add-on to current mechanics. Sure, it can track your full body and some games will make use of that only. But natal is perfect for the controller/motion combination, because your hands are still free when using Natal.
Holding a controller is not a problem, and you can still make some movements to be added in game. You can for example replace the throw of a grenade with a motion instead of a button. Or anything else that actually give more options in the gameplay since more buttons on the controller can be freed.
Head tracking in shooters might be possible. Don't know. Or in maybe mirror's edge, where you move your head down a bit, to show where your feet are.. Simple stuff like that.. Or even talking to the game, since it has voice recognition. Instead of clicking a yes or no button on screen, simply say it.. Or in an RPG, nodding a yes or a no instead of clicking something.. Or create a game that reacts according to the expression on your face. Imagine Mass Effect, and according to the expression on your face shepard will react in a different way to the character he's talking to.. That might be a bit too much.. xD lol
Would be awesome if you're playing Halo Wars as another example. Simply say "all scorpions move to coordinates xxx xxx". Or simply say "all scorpions" and then click with the controller where they need to go, since that might be easier than selecting them with the controller? Idk, I'm just making stuff up now, but the potential is endless.
They will need to use it wisely though, instead of actually doing weird things like that Burnout demo..
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