Palm users, you have not been completely left out in the cold regarding Navigation software. Handmark puts out two products that you might want to check out: First up is Rand McNally's Atlas, which comes on an MMC card. You just pop this gem into your Palm that's equipped with an MMC/SD slot, and you will be able to find your way all over the county's highways.
If you need something more local, check out Rand McNally's StreetFinder software. It loads onto your PC, then based on the parameters you set, you download the street maps to your Palm PDA. Pretty cool, huh?