Serious question -- why doesn't Google use the FriendFeed API for Buzz? Hopefully it's an open standard, if not, what would it take to make it one. Can't imagine the FF guys would object. It's a VERY nice API. Imho.
Why FriendFeed's designer, Kevin Fox, is to blame for FriendFeed being too difficult to use: he f**ks with affordances. (UPDATE: he answers me toward the end of the comments with a GREAT set of answers).