@raizel Which concrete feature are you missing?
Currently I'm rebuilding #AndStatus to support #ActivityStreams as a data model natively. In particular, Notifications / Activities timeline will be introduced to show all incoming Activities (and not messages only as now) in the order they were actually received by this device (and not in the order of dates, when corresponding messages were published or actions occurred). So users (especially having multiple accounts) won't wonder, for example, which "New mentions" were received.
This will immediately make AndStatus much more friendlier to existing Pump.io users, I think.