Kinect is the new commercial name of Natal.
Some games will be available will the Kinect release :
Kinectimals : A game similar to EyePet or 3D tamagotchi where you will take care of your tiger. You will can be the animal or the master.
Kinect Sports : Foot, Bowling, Ping pong, Boxing, Beach Volley and more.
Kinect Adventures : A family game.
Your Shape Fitness Evolved : A fitness game with a virtual coach that will try to make you moving and dancing !
Forza 4 : A car simulator game where you will be able to pilot with your hand... Be careful of the arm cramp !
Dance Central : A dancing game. (Developped by Harmonix, the creators of Rock Band)
I think "This is it" will be able with the Kinect technology also... So the moonwalk will be the next challenge ...
Source : jeuxvideo.premiere.fr