We're selfishly daydreaming of how we could use something like this at the next CES, but chances are that Lockheed Martin is really only fixated on boosting its bottom line by assisting the US military. The company's HULC exoskeleton, which was originally introduced by Berkeley Bionics in 2008, is seeing a significant upgrade this week courtesy of a fuel-cell power pack from Protonex. The goal? To strap a new, more potent battery onto the Human Universal Load Carrier that will support 72+ hour extended missions. Soldiers tend to carry around a lot more gadgetry now, all of which requires more and more power; with this pack, the men and women in the field could carry fewer conventional batteries while seeing an overall boost in available juice. There's no mention of when exactly this stuff will be rolled out en masse, but that's a detail you'll probably never know, anyway.