I think the thing that I like about the warchalking meme is that it has legs. More and more of us will be creating open networks out of EFF like zeal or plain ignorance, and the fallout will be interesting to watch. When the day comes that wireless phone network operators, like Sprint PCS wake up and put WiFi access points on all their towers, we'll see the real fun begin. Be happy OSX users that you have IPSec support. Mmmmmmmmmmmmmmmmmmmm, IPSec.