The first code has landed in SVN. It's a small client app which operates the Open Collaboration Services API. You can get user profiles, search for users and show your activity log. Still a long way to go, but it's a nice start. The app has the working title "Attica", after the region of Greece where democracy was born.
Frank and me discussed the API in detail today and came up with a couple of changes. The backend of the app will have to be adapted once these changes are implemented on the server, but it shouldn't be a big deal. I still have to come up with some more abstraction of the REST access, though.