What good is showing a CPU 3d character? You can not see if he is bluffing. Imagine seeing the other players face when you are playing poker. It would work well in a console too, in fact, I think this was planned for the Xbox camera.
It is surprising that neither ended up with one integrated, considering that so many other smaller devices get them thrown in just for good measure. How much does a 640x480 CCD + lens cost to include in a handheld device these days?