I caught this video over on BotJunkie.
I have thought for a long time that more Lego Roboticists would be doing more of this stuff. I expected that people would be attaching compass sensors to their body to direct robots. I thought that people would be putting gyro or acceleration sensors on their arm or head to direct turret guns or something else. Even a rotation sensor on their elbow to control a robotic arm.
I guess I will have to put that on my "to do" list.