I found your blog looking for some info on python, gps etc, if I remember correct. Then I checked out this osm and signed up. I find it interesting, but also somewhat confusing, f.x. is the mapped streets done from users drawings or gps data?

I dont like the image/tile usage, similar to google maps. I have worked some, a bit for fun, on a map of shanghai myself, by collecting gps data, and then rendered with flash, as vector graphics.

I might consider adding my collected gps data to the osm, I pretty much have most of shanghai center now (a lot of bicycling!), but as said im confused of the value of the data…. If it will turn into streets on the map, etc. I checked out osm map for shanghai, and it seems most of what there is currently is “drawn”, probably from overlay of that yahoo map.

Well anyway, im happy to meet someone who seems so interested in mapping as myself, haha.

Your blog post gave me an impression there was some photos of houses on the map, though I couldnt see it.