BigDog -- has been enlisted by Sandia National Laboratories (a US government-funded lab) and DARPA to make a new, hopping robot. Called the Precision Urban Hopper, the robot's goal will be to be capable of jumping over large obstacles in city combat situations. It will boast one extremely tough leg to assist it, in addition to its four wheels. The Hopper is supposedly going to be able to jump 25 feet in the air once completed. So far, only a very small prototype (pictured above) is finished, but Boston Dynamics is due to present its next model sometime during 2010.