I usually just tape my mouse to my dick, stand up at my desk and move my hips around to aim. but this.... now I wont have to do such silly things to play first person shooters.
dont think its application would be in the general commrcial population 1st though
i've heard of these being built to be implemented into wheelchairs and such to enable a person to steer the wheelchair and talk via the computer animated voice by typing with their eyes