If you've ever wanted to watch a monkey feed itself using a robotic arm..

"Andrew Schwartz and his team at the University of Pittsburgh, which reports on the monkey experiment in the journal Nature Thursday, say the experiments are paving the way toward prosthetic devices that "could ultimately achieve arm and hand function at a near-natural level."
Observers agree the work is promising, but caution it will take years to perfect the technology that uses electrodes implanted in the brain to control robotic devices."