Hence I m using fb for over 7 years. I can tell that it is the awesome social networking among all. in fb you can do all the things chat, upload videos photo and status.we can also make make group in fb with our relatives and talk to them. its service is too good that it can run 2G/3G/4G. even we can also do voice call video call through facebook. now a facebook has launched its beta version its good for low RAM smart android phones. facebook open in 1-5sec in laptop as wells android mobiles.