A powered exo-sketeton? It must use negative feedback loops to sense the operators movements, and then amplify them. This was described in Robert A. Heinlien's "Starship Troopers" back in the 1950's. A powered exo-skeleton was mentioned in Arthur C. Clake's "Hammer Of God" in the 1990's, the unit being an experimental design to allow natives of low gravity worlds to visit Earth. This has been science fiction until now, and there is incredble promise in this techmology. However, it must not be confused with control by nueral induction, as described in Martin Caiden's "Cyborg". That would be the only way that a paralyzed person could control an exo-skeleton, as they are not able to move their limbs. This technology also impacts telepresence, in that an operator wearing a exo-skeleton could perform physical labor at a remote sight, such as from a base on the Moon to a site in vacum. This would avoid the dangers of working in a spacesuit when suit integrity could be easily lost, as well as allowing the worker greater comfort than would be found in wearing a space suit for hours on end.