This can't possibly have many uses at all on a desktop computer or laptop, given room restriction, distances, screen size and overall sleekness of existing menu and interface designs. It will mostly be for TV use with a computer (as mentioned above), which kind of makes it near void next to a 360.
I seriously cannot see the market for Kinect on PC as a platform unless you actively try to make the PC more like a console.
Gaming uses are practically out of the question and nearly all commands will be a lot easier anyway with a simple bluetooth remote or keyboard/mouse.







