Under this contract, the U.S. Army will test Lockheed Martin's advanced ruggedized HULC design. The upgraded HULC system includes optimized control software, extended battery life and human factors improvements for quicker and easier sizing to each user. Lockheed Martin is also exploring exoskeleton designs to support industrial and medical applications."
http://www.lockheedmartin.com/news/press_releases/2010/MFC_071410_USArmyNatickSoldierCenterAwardsHULC.html