I'm pretty excited about this one. Now, when you're viewing your Private Page, it will show you activities for your friendmotron friends from any site they have. Whether or not you have an account on those sites.
For example, if I have a MySpace account and my friend has MySpace, Flickr, Twitter and LiveJournal accounts, I will see all their activity on my Private Page. I won't even need to set up a Flickr account to see their newest photos.
Cool beans! (That's old-school for "w00t")