I first fell in love with Kinect when it was first introduce at E3 in 2009 as Project Natal.  It has been available since late November under the name of Xbox Kinect.  With a fondness for virtual worlds, Milo and Kate is what first captured my attention.  http://www.youtube.com/watch?v=CPIbGnBQcJY

Now you can use SimplyCube to create your 3D application then link with Kinect to control it.     http://www.youtube.com/watch?v=v0G0Cb7Zqjk