Johnny Cache is a world renowned rock star of wireless hacking. In the past few years he has published an award-winning thesis on 802.11 driver fingerprinting, re-written aircrack in C++ (for aesthetics), and published two editions of Hacking Exposed:Wireless. Having written the book on wireless hacking he decided to go the extra mile and create a specification for geo-locating wireless networks. You know, so he could find more networks to hack. He does not yet have his CISSP.
PPI-Geolocation: The next generation of 802.11 visualization and geo-location