Alright, when I bought my 12'' PowerBook I also bought a BT Mouse and BT Keyboard. The Keyboard is perfect. Types exactly when I type it, experience no delay or anything. For the mouse on the other hand, it kind of sucks to say the least. I don't know if its just me or what. Im a PC gamer and I need precision. This thing just seems to stutter. When I move the mouse sometimes, it will suddenly stop and then start moving again. So when Im trying to click a button it takes a bit more effort just to click it because it doesn't seem to catch the slight gentle movements. I don't know if you guys ever had a dirty mouse before, where it can't catch the gentle touches to it too well, but thats how it is right now. Should I return it? I also obviously opened it. Do they charge a restocking fee for this?