I think the design is alright, everything together is pretty good. I just don't know how you could possible improve on the controller though, since I felt (literally) that the 360 one was perfect. They did mention they've added vibration/rumble to the triggers though, which sounds like it'll be awesome.

By the way, Kinect has grown up a shit ton:


It's just a tech demo obviously, but it is all real-time still and the possibilities for Kinect's integration into the entire experience in the next few years should be awesome. I'll definitely love the auto-sign in when it recognizes my roommate joining in while I'm playing.