This could be excellent for sure.
But even I'm a little worried MS might push Kinect too hard. Every rumor is about just tons of Kinect games but I hope MS realize in order for Kinect games to truely be excellent they need to be experiences meant for it. I hope they aren't just taking every 1st party game and developer and saying "Your game has to be Kinect compatible at the least."
But I have faith that there will be some quality core stuff for Kinect on the way. I just also hope that there are plenty of 1st party games coming that aren't Kinect related......