Comment Re:OT question ... (Score 2, Informative) 386
Try the Magellan eXplorist series (well, I can only personally speak for the 210) - the MapSend software to export map files runs almost flawlessly under wine (the only problem I've encountered was a crash when trying to enable 3D view in the software - not critical for loading maps). Once they're generated, the GPS unit has a USB Mass Storage mode allowing you to load the new maps as easily as you would copy them onto a flashdrive.