Now we are getting somewhere. This is really cool.

Dynamic Robot Manipulation – Brick throwing robot « adafruit industries blog

BigDog handles heavy objects. The goal is to use the strength of the legs and torso to help power motions of the arm. This sort of dynamic, whole-body approach is routinely used by human athletes and animals, and will enhance the performance of advanced robots. The control techniques and actuators needed for dynamic manipulation are being developed by Boston Dynamics with funding from the Army Research Laboratory’s RCTA program.