What the hell is Yahoo! doing? They have a couple of the first and best social networking sites, like del.icio.us and flickr. They have an IM. They have Yahoo!Mail with people's contacts. They have a lot of eyeballs on them.
Why can't the just come up with a simple site to integrate all of my and my friends activity, in one page? Not some fancy, complicated, Yahoo360 thing. A simple page, where I can see all my friends activity -just copy facebook News Feed.
And a "friends" page where all my friends, will be listed -as flickr friend, del.icio.us follower, addressbook contact, messenger contact etc.
Then, join on the Open Social thing.
Com'on Yahoo!, pull yourself together!