so if someone introduced a way to be on a small local area network with just you and your friends/family, without involving any third party servers (no xmpp or whatever else), would you guys be interested? encrypted of course, but based on "real world" trust (you already know each other in real life, you share a passphrase in person, the old fashioned way, no online pki conundrums).

is there a demand for this?

are people annoyed enough with facebook that they're ready for this?