Sources tell me that Microsoft and Yahoo will announce a new partnership tomorrow that includes Instant Messaging network sharing that will effectively allow MSN Messenger users to talk to Yahoo's IM users, and vice versa.
(Via TechCrunch.)
This is terrific news, now I'll be able to have family and friends from just one client. I wonder what kind of audio support this would have, if any. And when are we going to get audio capabilities in Yahoo Messenger?