I’ve just learned about Capsule, and I think you should too.
It is based off WordPress, and does sound interesting. But the two best things about it, I think, are that a developer can keep it private, and that a developer can connect his own Capsule to multiple Capsule servers. That ought to be a killer feature, as the only two arguments that I’ve heard from developers trying to make them blog more were, if only I had a better way of organizing my private code snippets, and if only I could share them privately with project teammates.
P.S.: I am also a big fan of using P2 theme for WordPress, which works wonders for project teams. But Capsule seems to be an even better tool for developer kinds.