I am working on integrating location based casual groups in my current app Finderous (http://www.findero.us http://www.findero.us). Features that I am implement

I am working on integrating location based casual groups in my current app Finderous (http://www.findero.us http://www.findero.us). Features that I am implementing: 1. Multilevel groups. i.e. groups at city/county/state/country levels. 2. Open/Closed groups. Anybody can join an open groups. And if you have a passphrase, you can join a closed groups. 3. Multiple threads in each groups. Pretty exciting the way it is shaping up.