You should like this, if you haven't already seen it: https://www.ted.com/talks/miguel_nicolelis_a_monkey_that_controls_a_robot_with_its_thoughts_no_really#t-11672
Miguel Nicolelis is pretty cool. Felt a bit sorry for the exoskeleton demo at the world cup. Tech still isn't ready for prime time. I'm sure he'll get there, tho.