Everyone goes on about the charing port. Personally I think the much more fundamental problem with the Apple mouse is that its just not a very good mouse. I've tried using them several times and I just can't get used to the lack of actual physical buttons, or the fact it doesn't sit in the hand comfortably.

My personal opinion is that they should have just gone all in on the external touch pad, and quietly recommended that if you want a mouse you should go and buy a Logitech one.