Globe trotter: As I mentioned in the 'GPS for Europe' thread:

Another option might be one of the new Nokia smart phones that comes loaded with free maps - for driving as well as walking - and free upgrades for life. You simply download the maps for your region of interest and go. I have it on my Nokia E71 (with maps of the Americas and Europe loaded) and its voice turn by turn navigation works without any internet or cell phone connection (no 3g, GSM, WiFi, etc.) - all that is required is that its internal GPS to see a satellite.

Regards, Bill