If when the Valentino gave his first steps my favorite toy was the Lego Nxt to play with Microsoft robotics studio, because with la Martina the play was the Kinect. To which I have quite abandonad now for my wife joy but sorrow in the Valentino.
As well, now thanks to the friends in Microsoft Research already you can download a package of services for Robotics Studio using Kinect SDK, allows us to interact with it.
The following video shows an example of the capabilities of this package:
Greetings @ Somewhere