The DARPA funded robotic arm prosthesis known as the “Luke Arm” is soon to go into clinical trials.
Apart from doing the routine functions of shaking hands, unlocking a door, etc., which most arm prosthesis available in the market are capable of doing today, this arm can also perform advanced motions like plucking chocolate-covered coffee beans, etc.
You can read more about this amazing technological marvel alongwith a details of the actual technology behind it here.
This brings me back to my college days when we used to read about the 3-axis , 4-axis and SCARA Robot-hands. It was fun . I wonder why I gave that up !!