But I haven't seen the creator say much about making it work on Wi-Fi mesh networks, though he did say it's pretty flexible and could be easily upgraded to work with new technologies.
Freedombox is pretty interesting, too:
I also like the ideas behind http://mondonet.org/ , but so far I haven't seen anything technical about it. They're supposed to launch it next month, last I heard. There are actually a lot of related projects:
You're right; exploring a web of trust rolled into this would be interesting.