As a technology demo of the future of computing (rather than the future of gaming), it's fascinating. Along with the "Milo" demo video, it's like a more advanced version of Apple's Knowledge Navigator vision of human-computer interaction. We'll see if it's any closer to reality than that 20-year old concept.

Game-wise, the "full body" fighting looks great, the facial and voice recognition is very cool. Some of the zero-controller games and interactions (like the racecar example) look contrived. I don't think I'd want to sit there for ten minutes so I can play pit crew and change tires for five seconds, nor would I want to keep my hands in a driving position for an extended time. There's only so much "real life experience" I want while relaxing.