It looks like some researchers at MIT and Brown University are about to see the fruits of their labor become commercially available, with upstart iWalk set to release the PowerFoot One prosthetic foot jointly developed by the two. Unlike similar devices, the PowerFoot One uses "tendon-like" springs and an electric motor to help propel the person forward, which supposedly reduces fatigue, improves balance and gives the wearer with a more fluid gait. A mix of sensors and specialized control algorithms also ensure that the person stays balanced while walking on slopes or stairs. While there's no word on what it'll cost, it should be commercially available sometime next summer.
[Via Gadget Lab