Ha. Wow...Microsoft you did just the opposite of what Sony did with Motion control.
Microsoft used developing technology not quite ready for current market and tried to place it in the market for gaming. I have no doubt Kinect WILL work sitting down, but right now the Xbox 360 just isn't powerful enough to do great things with it. Now, next console will probably work great with Kinects right outta the box...but that is next generation.
Sony, used old tech that they had been working on for while, and created motion controls with it, that work, although the controller still looks extremely dumb...but since this is old technology works GREAT with the current generation hardware.
Congrats Sony...you learned from Nintendo. Microsoft, you learned from yourself and your pathetic mistakes.