I like the concept of Wikipedia, but never managed to write an article which someone else already had done in a better way then I ever could do.
So, when I read about OSM some days ago, I signed up immediately, "pimped" my Becker TA 7934 with PMB 1.0 (enabling it to log routes) and started riding through my local part of Empelde, south of Hannover, Germany.
Doing this and editig the map with JOSM is fun and I hope that someday I will be able to use OSM on my PNA.