neat, tho we can't see what the arm is attached to whish makes me thing that there is probably a huge jumble of servos hidden out of sight to make the whole thing work.

but it's definitely promising, and if the ""only"" major problem left is powering it then it has great potential for prosthetics, it might require a backpack or at least a pouch to house the electronics, but between that and not having a functional arm I doubt anyone in need of such a prosthetic would mind wearing a pouch all day long.

and with sensor based brain-computer interface starting to become practical, that opens up a lot of possibility.

the whole thing is relatively simple in principle as well, it's mostly the software that complicated, so making other limbs is probably only a matter of time.