Wow, I'd love something like this, but that would incorporate my social media into background stream of super-compacted, mostly-text events. Think of being on a Slack channel (in Compact mode), where the only things that are posted are messages from your Facebook timeline, e-mail, HN stories, replies to your HN comments, new IM threads etc. Also, you could pin stuff you care about, and with one click/keyboard press, everything else gets cleared.
Alas, I don't think Facebook in particular allows for such deep integration with one's feed - because yes, that would essentially replace me the facebook website/app.
