Rudely said: Navigation software is intended for the geographically challenged, and as such, it tends to deliver results that please the disoriented - with cutely misproportioned graphics, all kinds of directional cues and icons, and nagging voices telling you where to go. If you are a good navigator, they will always be later than you...

GPS map software, on the other hand, is for skilled map readers - much better than paper in that you can carry more (and more special) maps with you, that your position is self tracking and that the destination is flagged. But the navigation is up to you, and if you don't know how to read a map, you'll be still SOL...

Sevo