Human Universal Load Carrier, or HULC, is an un-tethered, hydraulic-powered anthropomorphic exoskeleton. It is intended to help soldiers in combat carry a load of up to 200 pounds at a top speed of 10 miles per hour for extended periods of time. Right now this is strictly for military use, but I could imagine a future where, with modifications, this becomes a mobility aid for people who have difficulty walking. Pretty darn cool.
http://www.youtube.com/watch?v=KZ_qR8zCLDc
http://www.youtube.com/watch?v=KZ_qR8zCLDc