hi, i have a macbook core duo machine which has it's share of issues re: heat. Particularly in the summer time and during times of high CPU usage, the fans kick on pretty quick. I also run the Macbook frequently (exclusively when at home) with an external monitor attached. My question. Is there any reason to believe that a bluetooth mouse would run noticeably cooler than my current mouse which connects via a usb dongle? It may sound silly, but i get jumpy when the fans crank on a lot. thanks! PS--am i the only one who thinks 'dongle' sounds funny? i can't stop saying it. dongle dongle dongle. there. i feel better now.