Microsoft is starting to release commercial material about its famous Project Code Name Natal.  The brand name is Kinect.

I do not know how close they actually came from their original vision, given the time constraints (basically, it had to be shipped for XMas 2010).  Spoken commands seems to be there, I don’t know about hi-res camera system…  I reckon that if it delivers %75 of the original vision, it will be a blast!

You can have a look at the E3 first look.

According to its Wikipedia page, there are quite a few games targeting it.