Look, I won't exaggerate here like some of the others, as I believe this is a serious issue and there really is a problem with the product. They want us to buy Kinect and they tell us everything will be okay for their core player base, while at the same time they don't show us any games for their core player base, and they give a list of requirements that a large number of us can't work with.
For example: My sound comes from the TV, my TV is on top of a chest of drawers, and my bed is not even a metre away from the TV. The Kinect probably wouldn't even be able to see the floor because of this, rendering it useless if it requires the floor as a plane to base it's calculations off. It's too much hassle to have to move the Xbox out into the lounge or rumpus room to play it, even moreso to tidy up my sibling's messes. And it's even more hassle to have to move it back into my room when I want to play some other games that aren't suitable for my younger brother and sister to watch.
I was one of the few people who thought the Kinect sounded like a great idea when it was announced, and I was very skeptical of the Move. The Move impressed me though, and it will soon have a library of games with something for everyone. Kinect has not shown anything but party games. It will sell, but it will not be popular and there will likely be a large backlash against Microsoft after customers who were not aware of these issues beforehand (parents for example) realise that it's not at all what it seems.