Is there any open source social networking client android app

Question

I'm trying to create a social networking client application. Is there any open source social networking application available for me to understand the architecture?

Answer 1

Thanks cHao. Will post specific questions here after. For the record I was able to find the source of four square. http://code.google.com/p/foursquared/source/checkout Anyone who checks this thread can get benifit of this.