Hacking my arm prosthesis to plug into a synth: thought-controlled music [video]
The thing that caught me the most about this video has nothing to do with the hack (which is awesome). What impressed me was how natural the prosthesis is, and how naturally he moves with it. Specifically, he grasps his non-prosthetic wrist with his prosthetic hand, casually, while he's talking. It shows how he's able to use the prosthesis without thinking about it. That and the fact that the prosthesis has the same dimensions as a natural limb, and doesn't require any bulky power attachment. I'm guessing this is standard now, or at least not experimental. I didn't realize prosthetics had advanced this far.