@andypiper that's awesome. It'll definitely be extremely helpful for Smithereen — I do need a geographical database for several features that a social network of this style "must" have. That's at least the education section in profiles (schools, universities, etc), and venues in events.
I was contemplating how I'm going to try to pull something out of OSM and/or have a community of my users maintain it, now I don't have to. The only problem is that this dataset must be terabytes in size.
@andypiper oh wow, the whole thing is actually only about 10.5 GB. That's even more awesome. Totally something that can be imported into MySQL without much trouble.
edit: it's compressed so larger than that. Still it's a weird-ass format but at least the official implementation™ for using it is a Java library. I can deal with that.