Twitter Status - With friends tab and feeds: "Recently we made a change to remove the With Friends tab from user profiles. We did this after finding out that this tab was both a relatively rarely accessed as well as computationally expensive page for us to serve. At the same time we removed access to the feeds for this page."
Doh! Loose your feed, loose your friends. Sheesh, do people actually use the UI and page back though messages?
Guess I'm getting my Twitter via a feed from http://friendfeed.com/?service=twitter