I didn't want to hijack the GPS Software thread below but does anyone know if any GPS (be it Garmin, Magellan or otherwise) is Mac compatible? I have a very old Garmin unit that I'd like to replace but have since upgraded to all Mac's (a G5 and a PowerBook.) To the best of my knowledge, there is no mapping / GPS software designed to be Mac compatible. Any insights are most welcome. Many thanks.