Viking is a free/open source program to manage GPS data
Toolkit for working with and mapping geospatial data
Geographic feature extraction and data mining
Geodesy based library (geodetic and geocentric functions)
FastVersion is a Qgis plugin for data versioning in a Postgis database
Multiplatform Ham Radio APRS and Mapping Program
QNetMap is the library for displaying the map and the objects on it
Open Street Map (OSM) tools, OSM/XML parser, tag extractor
A frontend for gpsbabel
Multiscale Curvature Classification for LIDAR Data
a free and open map of wireless communicating objects