GPSBabel - GPSBabel converts waypoints, tracks, and routes between popular GPS receivers such as Garmin or...
Trapster - Trapster is a speed trap sharing software.
BT747 - Software for tracking GPS Data Loggers: download and convert data (HTML, GPX, KML, KMZ, ...), geotag and configure. For PC, Mac, PDA, Mobile Phone. USB, Bluetooth
TrekBuddy - Outdoor companion, Mobile application for offline GPS tracking and simple navigation, bluetooth serial internal GPS, offline raster maps, GPX and NMEA tracklogs, location sharing, waypoints, navigation
GPSies - With GPSies you can view and download tracks which have been recorded by a GPS device.
Maplorer - Mobile Atlas Creator. Free software for Windows CE and Windows mobile based GPS systems and smartphones.