About the Battle of the Mesh Organisers
Ninux.org is a wireless community network based in Rome, that aims also at promoting the free networking culture in Italy.
More info can be found at http://wiki.ninux.org/FrontPage.
/tmp/lab is the Paris hackerspace located in Vitry (East suburbs of Paris) working on wireless protocols, FPGA OpenHardware implementation and RepRap improvments. The /tmp/lab organized the HackerSpaceFestival and the first WirelessBattleMesh.