Viking is a free/open source program to manage GPS data
Handling and basic analysis of hyperspectral data in R
Analysis and display of Census, business, government attribute data
Geodesy based library (geodetic and geocentric functions)
A Landsat 8 scene viewer
Multiplatform Ham Radio APRS and Mapping Program
Open Street Map (OSM) tools, OSM/XML parser, tag extractor
MeteosatTool is for visualization and processing meteo satellite image