Geographic library
GPS log file viewer and analyzer
GPS navigation software for Windows Mobile & WinCE devices.
French Geographic Information System
... the open-source glide computer
Adjustment of local surveying networks, binary builds for Windows
A GUI for the freeware Geographical Information System PCRaster
GDAL wheels for python and C/C++ projects (Linux only)
Plugins for OpenCPN
Geodesy based library (geodetic and geocentric functions)
See your friends from VKontakte on the map
Geostatistics and geosciences modeling software
Library for OpenStreetMap offline rendering and routing
Multiagent simulator of road traffic in Qt/C++ and OpenStreetMap.
Subway maps of the World !
Open Source Marine Chart Plotting Program
Former project page
OTB is an open-source C++ library for remote sensing images processing
QNetMap is the library for displaying the map and the objects on it