I worked on the original hopping/jumping/running robots at CMU and later MIT with Marc Raibert. I can assure you that everything done was above-board, published, and open. Dr. Raibert is one of those rare scientist/engineer/entrepreneur types who is interested in progress for people. He was asked by DARPA to develop this vehicle, so he wanted to help them out.
The Sci-Fi stuff in these comments are, well, crazy.