Sphero a Smart Ball for a Smart Phone & Tablet, User Operation demo

“Sphero is the first robotic ball gaming system that you control with a tilt, touch, or swing from your smartphone or tablet. You can even use Sphero as a controller for on-screen gameplay. Sphero delivers a unique mixed-reality experience with single and multi-player apps that let you engage in the virtual world and play in the real one. It’s the ball evolved.”
more info @ http://www.gosphero.com