Worth a look! Another open project demonstrating that data does belong to everyone!
Done with easy to understand WEB 2.o technologies means no downloads and you can get going immediately.
Users can register and start contributing GEO data just like with Wikipedia.
One of the most creative ideas they have is to show cycling trails, something NOT available in any other map applications I know of.
Have a look at this site and explore your region while I go ahead and play with the data layers they provide to developers.
