Okay, this is major cool. It's a beta, but a beta that seems to be ready for primetime. Yahoo's stuffy old maps are gone, replaced with a fully interactive flash based map that blows the lid off of what Mappoint and Google have both done. So Check out their site < Yahoo Maps Beta>.
In time the beta site will go away, and you will be able to go to < Yahoo Maps>
Check it out... very cool.
Yahoo updates their maps section and it's all in flash.