Viking is a free/open source program to manage GPS data
A software package for quantitative analysis in Panbiogeography
Plugins for OpenCPN
a space-time interpolation geostatistical tool
CAD 2D for Land Surveying,Civil and more
Ready-to-use appliance for GIS, Data Mining and Analysis, Modelling...
a free and open map of wireless communicating objects
A free library for fast clipping of arbitrary polygons