Doesn't "controller free" mean no controller? So what accessories can you buy for natal? Oh, I know. I can employ someone to wave their hands around while I instruct them what to do from the sofa drinking my beer.
Or maybe the natal lens cleaner kit.
Any peripheral used by a player that interacts with natal directly in a game is a controller, hence it will make the claim of controller free gaming false. So I can sue :)
OT: WHo knows? You do have some good points but time will tell.