I thought of a way to use the Kinect in the way that many full immersion do today. I believe that using the cameras or, a Kinect itself, you could cover 5 sides of the room: Ceiling, floor, and three walls. The final wall could be used as the screen for the game. From this you could play Modern Warfare, Black Ops, BF: BC2, or generally any first person shooter. Nearly any game. Another idea I had for the FPS games was making plaster or plastic casts of the weapon, and having places on the body to put the weapon. In the case of the Call of Duty games, you would make a general cast for primary weapons, a "pistol" cast for secondary, and grenade cast for grenades, and a claymore cast for equipment. I figured that you could put a wireless adapter in the bottom of the cast, and when you "holstered" your primary weapon you would pull out the "pistol" cast. You would pull out the item that corresponds to the item in-game. It seems like an idea that would be more energy and cost efficient than most immersion systems of today.
Just give me your thoughts.