Googletalk & AIM becoming officially compatible?

Google linked up their arguments to allow the Yahoo-Google ad deal to go through without government regulation. I was actually most surprised by slide #8, which reads that "Yahoo! will enable interoperability with Google instant messaging".

Does this mean Yahoo Instant Messenger will use jabber, and as such, talk to any jabber client?

This may be the first good news for googletalk since it was launched, as Google doesn't seem to be doing any work to update it or add features.