Hi,
It looks like the folks at HacDC, a hackerspace in Washington, DC, have done their own battlemesh:
http://drwho.virtadpt.net/archive/2011/03/15/project-byzantium-sprint-1 http://drwho.virtadpt.net/archive/2011/04/14/project-byzantium-development-s...
They've got a few minor misunderstandings (for example, they're trying to get ordinary DHCP to work over a mesh), but they've managed to get both Babel and BATMAN-Adv to work with no help from us -- well done.
-- Juliusz