Viking is a free/open source program to manage GPS data
... the open-source glide computer
A Guide of the Trees of Barcelona City
A Matlab software to estimate Euler pole parameters
Tool to work on map data, to check the data and generate your own maps
Map application using OpenStreetMap data
Analyze and change GPS coordinates and time in digital pictures
A gui for linux users of miniHomer, a GPS tracker
a free and open map of wireless communicating objects
Convert GPS-Tracks user-saved tracks to KML files for Google Earth.
GPS data in a file for development testing
PC/PocketPC tool to get tracklogs from the WBT-201 GPS logger
GPSBabel converts and transfers data like waypoints, tracks & routes.