When Kevin Oldt crashed his snowmobile in January 2001, his doctors told him that his spinal cord injury meant he'd never walk again. So it's with great satisfaction that he tells me his personal record for walking with the help of a robotic exoskeleton from Ekso Bionics: about 5000 steps in one day. He clocked those steps in a Dallas convention hall where he spent four hours on the show floor demonstrating the features of the Ekso GT, the company's current commercial model. "And I didn't feel tired," he says. Oldt recently gave IEEE Spectrum a personal demo at a New York City hotel [video below], accompanied by Ekso CEO Tom Looby and an Ekso physical therapist.