That command works great with my GT-31, thanks! Running on Debian powerpc.

I had a problem though when I tried converting NMEA to GPX. gpsbabel just got stuck using 100% and I had to kill it. The same command on the same file worked fine on i386. I will have a look in GDB and send you some more details.

Sweet. Got mine this afternoon. When that puppy's charged I'm going out to make tracks. That's really bad luck about the puncture, drawing pins lying around on roads isn't really common, is it? Now for my bad luck... it's been glorious weather all week but just now a huge dark storm has rolled in, just in time. Apparently it's here to stay for the weekend. Well at least the GPS is waterproof. GPSBabel 1.3.5 compiled fine for me on Debian. I did a "apt-get build-dep gpsbabel" before trying though. I'm interested in the accuracy of the SiRF III. Perhaps you could take both the BGT-11 and BGT-31 mapping with you and compare the tracks?

Forgot to mention: this script downloads the XML streetmap data for a rectangle around Wrocław and justs counts the number of nodes and ways assigned to each user.