After all your heavy lifting, I feel bad mentioning the that Options link allows you to hide any type of entry, e.g. tweets from people you already follow. - Jake Kuramoto

Jake, I've been looking and maybe I'm blind, but I only see the option to hide entries for a given person. In other words, I don't see an option to hide all twitter entries from everyone I'm following. - Ryan W

Heh, maybe I overstated, you're right, it's per friend, not a blanket policy. Perhaps an enhancement? Comparing the following list, which is public, for the account you supply seems straight forward; create a binary option to ignore all tweets from people following. Sounds doable . . . paging Bret, Paul, Jim, Sanjeev, Ana, Kevin. - Jake Kuramoto

Ahh, that's a relief. I was starting to worry about my ability to navigate the web there for a sec. I agree, seems like a great addition to FriendFeed and shouldn't be too difficult, especially considering the rate they're moving. - Ryan W