GeoVisu
GeoVisu is a viewer for geographic data – graphic files, images, and GPS. It provides real time GPS navigation (moving map – NMEA 0183 protocol or Garmin USB), either from GPS device or UDP port, displayed with diverse geographic data (MIF, GPX, NMEA, KML/KMZ, OSM, cGPSmapper, SHP, ECW, GeoTiff, MrSID).
It can download waypoints, tracklogs, and routes from datalogger GPS devices. It supports many geodetic systems and performs geographic and cartographic coordinate conversions. It can save graphics data to MIF, GPX, NMEA, and KML (Google Earth) formats.