When I joined openstreetmap back in 2006, I immediately understood its potential. However, I didn’t believe it would grow as fast as it actually did. Today opentreetmap pervades everyday’s life. Maps rendered from our data can be found in the »Fahrradbuch Karlsruhe« or in a brochure of the local public transport company, showing all public baths of the Karlsruhe region.
This eve, on the way back home, I saw a display at a pharmacy around the corner, alternately showing some ads and the location of the next emergency service. I knew those maps:
Osm on a pharmacy display
You can even see some dismantled railways which have been mapped by some trainspotters. Here’s a screenshot to preserve the rendering:
The area around the Ettlinger Tor, Karlsruhe, including some dismantled railways (data by openstreetmap.org and its contributors, CC-by-SA)
I find it very interesting where our data pops up every now and then and am curious where they will surprise me next.
With the attribution as the current OSM licence states I suspect things would progress even quicker.