This one is a PS Vita controlled robot.
The vita code is in c# using the awesome PS Suite SDK and basically just sends commands to the robot using udp sockets. The robot is powered by .Net Gadgeteer.
This video shows the robotic arm being controlled by the d-pad and right shoulder button on the vita.
I'll post a few more videos of the robot moving about soon, but it's late at the moment and the motors are a bit noisy. Don't want to wake the wife!!