It remembers where you left off last time in a conversation.
It doesn’t repeat the name of the user like “Shiekh Mulana Falana Dhimkana waldh nima ghubara waldh shakar goorh says:” over and over again if you are the only one talking.
I have been told that the voice chat is far more clearer than any other IMs out there.
Like all the google stuff its fast. Good text chatting and voice chatting thingy.
Yea voice quality is really good.
They r using XMPP for its connectivity with other IMs, but at the moment it is supporting very few other IMs.
Options are limited, but i hope that they will definitly improve it with time.
They r also working on allowing users other then gmail.
:)