Twenty years from now, exoskeletons probably won't be as advanced as the one depicted in the 2007 movie Iron Man, where actor Robert Downey Jr.'s character Tony Stark dons a suit of armor to fight crime. Ultimately, that's a fictional account of just what the technology can do and not based in reality at all. What is reality, however, is a growing interest in these devices being used to help patients with spinal cord injuries walk.