A couple months ago I had a thread or two going with the list on finding a "perfect" mouse for my iBook 500: - portable (not a full size mouse) - bluetooth (not RF wireless, true bluetooth) - two button - scroll wheel - no need for a hack or drivers to make it work, seamless with OS X My big hope was placed in a purchase of the Targus mouse model number MOBT90UO, item number AMB01. It wasn't cheap.... $80 at Best Buy. But it had a USB bluetooth dongle and it is comfortable and the portable size I'm looking for. However, it turned out to be a disappointment because the software was only Windows and on the iBook only the left and right buttons would work, not the scroll wheel. USB Overdrive helped a bit, but they have not yet released USB Overdrive for Bluetooth mice (which is supposedly in the works). Today I picked up the D-Link Bluetooth USB dongle sold at the Apple Stores (another $40), and now the Targus mouse works! Even with USB Overdrive disabled. Scroll wheel and all in every application tested. I was also able to apply the Bluetooth firmware updates from Apple's site since the D-Link dongle is officially supported and the software found it. So now I *finally* have my portable mouse bluetooth solution $120 later ::sigh:: But some things are worth it just for the learning fun. Hopefully someone else out there will benefit from my experience. Tom