I've had 3 to 4 bluetooth mice with my macbook pro. While others certainly have had better experiences than me, I have NEVER found one to have the same responsiveness as a non-bluetooth mouse. I've tried a Kensington mouse, a logitech, and one other that I don't recall. The non-bluetooth MS bluetrack mice and Logitech mice have worked better for me. Sucks to not be able to use the built-in bluetooth, but I think the performance tradeoff is worth it.