It all depends on implementation. Personally, I would love a one handed controller, but it would require games to be designed properly to get full use out of it. Not only would half the controls be cut out, but (with the design of the first controller), it would be the Wii-mote's controls that are removed, leaving only the nunchuck's controls. I'm also not sure how well balanced either of those are, and they might not be that comfortable.