Murata Boy.

From Swik.net

"MURATA BOY is a self balancing robot that is packed with electronics to allow it to have extraordinary balancing capabilities. The specs are impressive especially considering the small size of the unit however watch the videos, they are something else!

The little guy does not fall down, even when he comes to a complete stop. And, it’s not training wheels keeping him up, but a gyro sensor located underneath his seat that detects tiny movements to calculate the slanting angle of the body. Once the angle is figured out, a large rotating disc in the robot’s chest generates force to correct the slant"

Perhaps in a few years this little robot will lead us the way to production motorcycles with built in gyro's -allowing for safer and (more importantly) faster machines.