This simple static git repo creates a google map that you can view here:
http://coworking.github.com/coworking-map/
showing all the coworking sites in stored in another git repo:
https://github.com/coworking/coworking-metadata
The data is pulled over as a jsonp payload straight from github. So it is all very open and all very realtime.
We are working on open ways to host the coworking site data, like microformats.
Team: Jacob Sayles & Victor Ung