More GPS and mapping software in Open Source …
There is more Open Source software appearing continuously that is experimenting with mapping and geographic visualization. This looks like one that has some nice features and capabilities. It is addressing 3D displays, and also the capabilites to access map data from sources that are being constantly updated. This last feature is one that I have been looking at for a while with some friends. It seems to me that I would want to be downloading and caching map data all the time as I travel and always be fetching the most up to date data … maybe even data that was created by friends or family!

gps3d 1.18. A GPS 3D visualization utility. [freshmeat.net]