We've seen a lot of cool accessories for the iPad over the years, but this one might just take the cake. Double Robotics has just unveiled a new self-balancing motorized stand for Apple's tablet called the Double.
The stand uses the iPad for propulsion, as it wheels around on a Segway-like base. And the whole thing is controlled by a second iPad, using the camera on the first for guidance. You really have to see it to believe it...