Phenomenal Robotic Arm (and experiments with phantom limbs)

So quite awhile back when I went to Wired Nextfest, I saw a robotic arm with 33 pneumatic pumps. I thought it was amazing because it could pick an object as fragile as an egg, but I couldn't visualize how this could be translated to helping amputees.
But recently on a 60 Minutes program, DARPA is funding this amazing project. You can control the arm connected to sensors with your foot. In this clip, you can see a user pick up a bottle of soda, open it, and drink from it. Also in the last portion of the clip, this company experiments with brain waves by connecting sensors to the limb (not sure, but could be related to phantom limbs). Anyway, I was blown away by this technology. If you have any insight, and ping me links to other scientific research (address is posted in the footer--Thx).
You can read more about this story, here.

