The built in Map program gives you detailed maps of the whole US for free, and you only have to download 2 maps, which can be done on your desktop if you prefer. These maps are much more compact than the Maemo Mapper maps, for the same level of detail, and may be more accurate in some cases. If you have a bluetooth gps device, the built in Map program should be sufficient to keep you from getting lost. Admittedly, the free version doesn't even compare to a real stand-alone gps navigation unit, but it's very useful for those of us who don't have one.