It isn't actually a gyro stabilized rig........ It does have gyroscopic sensors on it, as well as accelerometers, to detect linear and angular motion, and then use motors to counteract those motions. .
Similar to this. http://www.youtube.com/watch?v=ewK7NkcCFCk but this one has only 2 axis compensation.
and this http://www.youtube.com/watch?v=
and this http://www.youtube.com/watch?v=YJXv-Qm4ZUc