Thanks Froggy.
I did a blog post about it on Practical Arduino yesterday, too:
Practical Arduino: News - Car engine datalogger project update
I ran the logger again this morning on my trip to work, and now that I have everything in place it only takes a few seconds to plug in the memory stick, run the conversion script, and open it in Google Earth to see a trip visualization. This morning I had a few work colleagues looking over my shoulder as I flew around the trip and they thought it was pretty cool.
Cheers :-)
Jonathan Oxer