We're running a simulation of what the surgeon is doing by having the subject wear goggles with a s-video input (it's those fancy expensive goggles to watch movies or to game on). Similar to the article, a camera is attached to the front of the goggles. The input feeds into the computer, chugs through my code, and displays an image meant to simulate varying amounts of electrodes (4x4, 16x16, 64x64) in various configurations (wide screen vision anyone?). All this goes on while the subject tries to accomplish tasks (writing a check, discerning between a fork and knife, etc).
Also, check out a company working on implementing this idea: