I just got one of these controllers tonight and I must say that I think it is awsome. No delay, 20 feet from the TV. No cords for my daughter to trip over. I can keep my door closed on the entertainment center. ITs sweet.
I thought of a fun thing to do with them though. On each controller you can set which channel you want your controller to operate on, so you can have more than one wireless unit on your cube. Well, when you are playing a sports game, or fighting game or whatever with your buddy, check what channel he is on before you start playing. Then when you start losing, switch your controller over to his channel and take control of his team/character and jump them off a cliff or call a bad play.
I know this is childish, but it is gonna be funny as hell when I do it playing Blitz with my friends.
BTW, get one of the controllers. They rule and are only $29.