QLandkarte GT is the ultimate outdoor aficionado's tool. It supports GPS maps in GeoTiff format as well as Garmin's img vector map format. Additional it is the PC side front end to QLandkarte M, a moving map application for mobile devices.
MeteosatTool is for visualization and processing meteo satellite image
MeteosatTool is a program for visualization and processing of data from Meteosat Second Generation (MSG) geostationary meteorological satellite, and output data of SAFNWC, the Satellite Application Facilities for NoWCasting and very short range forecasting software package
pgArcNG -the ArcGIS(ArcMap) connector to postgis with multiuser editing ability.