I can't help but be concerned about the length of the wire connecting the nun chuck and the remote. In the pictures I've seen the wires all look pretty short. That wouldn't offer a lot of freedom in arm movements. For example if your drawing the bow in the new Zelda game it would be more natural to make a full pull back draw than to miniaturize your movements to accommodate the controller.
Having played with the controller at E3 and seen Matt's video at IGN, I can assure you there is plenty of cord length there. You will not be able to spread your arms out fully to each side, but you would never want to do that for a game anyway. Even when pulling back a real bow you wouldn't fully extend either arm.
I'm not so sure about that. It really depends on the movements involved. In some of the games that require you to move both arms very quickly the cord can get in the way. I wish both were wireless and I wouldn't be surprised if they came out with a wireless nunchuck in the future.