One of the world’s biggest mobile money services wants to become a social network — Quartz — “The messaging service, known as Bonga (which means “to chat” in colloquial Swahili), was partially launched on April 26, in closed beta testing for select users on Android devices, according to documents seen by Quartz. The app will allow users to review their balance on M-Pesa, besides letting customers transact money without leaving the platform.”