[dtwwtd]

I don't care much about receipt notification but chat history sync was probably one of my biggest annoyances with GTalk. I'm glad to see it solved in some way although it is disappointing that Hangouts doesn't support XMPP anymore.

[claudius]

Well, it is being addressed. Ideally, I would like my phone to tell the server to save history of its chats, Pidgin on the desktop syncing these chats over from the server and then deleting them from the server and the server making sure that, if Pidgin is running, it gets messages instantly even if they are sent to/from the phone, either by pushing Pidgin to sync history or ignoring the full JID and always doing a CC to Pidgin.

I guess it is a long way till we get there, though :|