I finally rewrote my console-based GPS mapping program "GPSCon". Users may now use command-line switches. Furthermore, referencing maps automatically works better and I daresay that the program is now actually usable by other people than me. GPSCon is downloadable on my homepage.
Quick introduction for users who have used GPSCon before (you should also take a closer look at the file README):
./gpscon -d /dev/cuaa0 -l gpscon.log
-r poi_data.txt -s-s tells GPSCon not to use auto-referencing, which
might be better in some casesHave fun with GPSCon and drop me a line if you like it.