AnonTechie writes "The Tor Foundation is moving forward with a plan to provide its own instant messaging service called the Tor Instant Messaging Bundle". The tool will allow people to communicate in real time while preserving anonymity by using chat servers concealed within Tor's hidden network. In planning since last July as news of the National Security Agency's broad surveillance of instant messaging traffic emerged the Tor Instant Messaging Bundle (TIMB) should be available in experimental builds by the end of March, based on a roadmap published in conjunction with the Tor Project's Winter Dev meeting in Iceland.
TIMB will connect to instant messaging servers configured as Tor "hidden services" as well as to commercial IM services on the open Internet."
That is precisely what DNS is for. Too bad so many PCs on dynamic IP connections are infected with SPAM-sending trojans that most big email providers require also inverse DNS to accept email from those IPs, which is a lot harder to get (you need to convince your ISP to set it for you, and update it whenever your IP changes).