Brain Controlled Robotic Arm Controlled by Monkey
Here is an interesting video presenting a prototype of a robotic arm that can be "equipped" on any humanoid being and controlled via its brain signals.
If these test work—which they look like they do, the monkeys are feeding themselves successfully—you too can lop off your own arm, stroll into the emergency room, and feel confident that they'll replace your missing appendage with the robotic equivalent. No wait! We mean in a couple of years!