I'm currently refacturing my #node2node (like #peer2peer) software called 'hub' to a much more flexible approach. The "old" (#master) aproach only allows TCP connections for node-to-node communication which is mostly enough but I like to have it not so static.

The new approach will allow not just only TCP connections but also e.g. #fax, #i2p, #ham (packet radio) and many others more. Yes, Fax: The message is BASE64-encoded, so it can be send as a fax from one computer to another.