Let's discuss Microsoft's Project Natal

Microsoft has a new product coming to the market this holiday season called Project Natal for the XBox 360 (and presumably beyond).  It looks absolutely fascinating.  I've Twittered about this in the past when I saw some of the first advertised demos, but since CES 2010's talk yesterday, I've gotten a little more to go on.  I personally believe that the technology behind this is going to be revolutionary, in that it will completely change the world.  Share some of your thoughts.