Miyamoto looked a little jealous there... not that he has a reason to be but he does.
Anyway, if Microsoft is betting big on motion controls, they are shooting themselves in the foot. America don't want to move, they don't want to lose weight by moving much. We want pills and easy dieting. The Wii did so well because it was revolutionary for the time and all you had to do was "swing your arms from side to side and do the Mario."
We've seen Kinect before, it is cool I'll admit but they should focus more on their core audience which isn't kids. Nintendo is more of the kids/family console line. Nintendo has never really reused mechanics for future consoles and justified them as new. I mean, what else can Kinect do?