An anonymous submitter writes "A few stream-through-firewall applications have been announced recently. p2pnet has an interview with Ian Clarke about his new 'Dijjer' program, which promises to reduce bandwidth requirements from HTTP servers by transparently distributing the load. Slyck.com has an article about LimeWire's new version that offers firewall-to-firewall transfers (code here). [Both Dijjer and LimeWire are GPL'd.] There's also been a lot of discussion on the p2p hackers list about reliable UDP transfers."