What makes you feel that Kinect 2.0 will be a killer app? Since we know little about the next Xbox and kinect I'll go on the assumption that the motion tracking is much improved. As one user put it he feels PSEye will Negate Kinect, though I feel Kinect 1.0 already negates Kinect 2.0. It's definitely a nifty feature that sold very well but I doubt it will be the next xbox's selling point.