Until I read this post
on the Unofficial Yahoo Blog, I had totally forgotten about Microsoft's promise way back in October to make Windows Live Messenger (the successor to MSN Messenger, currently in public beta
) interoperable with the Yahoo! Messenger network. Somewhat surprisingly, though, they haven't forgotten, and according to Leah (apparently Microsoft developers don't have last names) at the Inside Windows Live Messenger blog, they've got the feature working in test builds and it "can't be much longer" before Windows Live Messenger users will be able to chat with their Y!IM buddies. We're waiting, Leah.