you can get TomTom, Garmin, or iguidance, plus some others, with all maps stored on a memory card for Windows mobile and palm. Figure about another $100 for that. plus, even thought the interface is the same (at least for garmin) its so much easier to just use a gps. Screens on phones suck compaired to gps screens as far as daytime use goes. Nokia also has its Nokia Maps app for S60 that can catche maps for offline use.