OpenStreetView recently launched (SearchEngineLand coverage). Real estate is a big vertical for Google Maps and StreetView. For the mapping geeks out there, you should take a look.

If you’d like to learn more, here’s a presentation with more of the thinking/vision:

For those interested in the mapping space, another player you should be aware of is Mapbox (who I spoke with at Inman a few weeks ago, and added to the post about local data sources).