I strongly recommend adding 2 features:

(1) Extensive Privacy options, similar to Facebook & Agriya's Kootali

(2) Networks similar to Facebook. One of your competitors, Agriya, created excellent Networks feature in its Kootali script. The Networks must also integrated with the Privacy options.

I wonder why none of Dolphin's independent developers has done Networks module, even though it is a very important feature at Facebook. Is it too difficult to implement ?