Microsoft’s MapPoint Web site allows you to call up a map for just about any locale in Canada, the U.S., or western Europe. Then you can click a button right above the map to download it to your Pocket PC. You can also get driving directions. The accuracy of the driving directions leave something to be desired (for instance, they may tell you to turn left without noting that in order to do that, you must exit to the right), but the maps are pretty good.

http://mappoint.msn.com/