I dunno, I was thinking about getting it, but I use my Macbook Pro for games, and this mouse doesnt exactly work out for games. I need to be able to hold the left mouse button, and click the right mouse button at the same time. That's the only problem with this mouse is you can't click them both at the same time, or one right after the other easily.
I might still get one though, the scroll ball is addicting, I had to throw my other Mighty Mouse away to get back used to the scroll wheel. It was tough, but I'm back used to it now, lol.