Geographic library
GDAL wheels for python and C/C++ projects (Linux only)
Google Earth Enterprise - Open Source
Interactive visualization of plate tectonics.
Geostatistics and geosciences modeling software
Automatic delineation of forest borderlines
Tool-Kit aplication for system Geo Integrations
a free and open map of wireless communicating objects
... the open-source glide computer
Python-accessible toolkit for Geoscience & Remote Sensing Applications