lxbarth
The Future of Addresses Is Open: Launching OpenAddresses
OpenStreetMap Isn't All That Open, Let's Change That and Drop Share-Alike
Soupertonne - trash bin kitchen
http://soupertonne.tumblr.com/
Old Eastern German trash bin turned into a kitchen.
Actually, the only part that's proxied through a server side app is authentication. GitHub's v3 API supports CORS to the extent Prose uses it.
For a little background on Google Map Maker look at how Google is starting to run a more aggressive mapping campaign by announcing a partnership for sourcing geo data [2] with the World Bank, a community site [3] that looks a lot hotter than osm.org and Mapping parties all over the world [4].
[1] http://www.google.com/mapmaker/mapfiles/s/terms_mapmaker.htm...
[2] http://www.nytimes.com/2012/01/14/opinion/empowering-citizen...
[3] https://sites.google.com/site/mapyourworldcommunity/
[4] https://sites.google.com/site/gtanzania2012/mappingparty