So um yeahhhhh. While I agree with the goal of this thing, making a battery power motor that physically flips switches for you doesn't seem to be the best way to go about doing things. How much more resources does this take than a standard motion sensor switch combo? However for those that are unwilling/unable to replace their existing switches I guess that you could over come the battery power requirement and construction requirement to save net energy. I'm sure this will be available soon in skymall.
Well, actually it's quite a neat gizmo—it's battery powered, and simply mounts directly over a light switch, which it then throws for you if it doesn't detect movement in front of its sensor. Plus it turns the lights on when you enter.