Warchalking Visual Cues To Urban WLANs

elucidus writes "Matt Jones has put out a PDF and EPS outlining symbols to use in Warchalking the WLAN nodes of your community. Here's a pic. Ben Hammersly dubs them Hobo Runes." Brings to mind pictures of scruffy individuals around a fire with picturebooks, taking a pull from some ripple while reading slashdot.