The Gravitonus is one hell of a workstation that keeps the user in the most ergonomically optimized position at all times. This workstation is now being adapted for quadriplegics with the addition of ACCS, or alternative computer control system. Basically, a control unit is placed in the mouth that does all of the work and still allows for breathing, drinking, talking, smoking, etc. The addition fo ACCS for the paralyzed is definitely a plus, but I'm still amazed with the actual workstation. Jump to see a video of the original Gravitonus in action.