Map data wants to be free!

There is this saying from the Free Software community that software wants to be free. Soon some people scanted that Data Wants To Be Free too! So, many volunteers brought us valuable reference knowledge such as Wikipedia and classic books as in the Gutenberg Project. Now a massive fortress of paid data is under siege: Map data. The Open Street Data project has volunteers driving with GPS and camera through the country to collect the data - while at the same time having a lot of fun. I should say driving through many countries, although it seems as if The Netherlands is still a works in progress... hmmm, tempting!