Remember Warflying from a couple years ago? Back in 2004, some pals of mine performed a few Wi-Fi experiments over Los Angeles for the now off-air Next@CNN (WMV video). During the flight we not only scanned for networks, but we created the first ever air-to-air Wi-Fi video conference. Well, the map we made using Netstumbler is featured in this Times article on "piggybacking" on neighbors' Wi-Fi networks.
The map clearly shows the route the airplane flew over Los Angeles. But the GPS "breadcrumb trail" is actually made up of more than a thousand individual wireless access points discovered on the flight. These things are pretty much everywhere in LA.
(via WNN)
Link to story.