hakan - Every NMEA sentence is saved in the KML file. You need to unzip the KMZ, but there is a XML comment with a millisecond counter (6 digit?), with a source letter - the internal n810 will have a, the BT has g - and the full NMEA text raw from the device. And the OBD if that is on. And I may add battery, ambient light, temp, iwlist scan output...

cat *.kml | grep \$GP | cut -b 12-999... or something like that can extract the NMEA sentences (mod if you need proprietary sentences too). I plan on writing a Python KML/KMZ playback program which would do something like this.

grog - I'll have to look at gpxview. It should fail trying to turn on, but the connection to the port should work, but you have to have minigpsd started BEFORE running gpxview. If there are any error messages, it would help...