Hugh Pickens DOT Com writes: L. J. Williamson writes in the LA Times that with no running water, no plumbing, and no electrical outlets Burning Man isn't the kind of place to expect full bars on your smartphone and for many of the participants that's a big part of its charm. "If you want to partake in the true Burning Man experience, you should leave your phone at home," says Mark Hansen. In past years, the closest cellular towers, designed to serve the nearby towns of Empire (population 206) and Gerlach (population 217), would quickly get overwhelmed each August when Black Rock City (population 50,000 or so) rose from the featureless playa. Although Burning Man attracts a sizable Silicon Valley contingent including tech giants like Jeff Bezos, Larry Page, and Sergey Brin — the feeling of being "unplugged" has become an integral part of the Burning Man experience. But another part of the event is an intrepid, DIY ethos, and in that spirit, David Burgess, co-creator of OpenBTS, an open-source cellular network software, brought a homemade in 2008, an "almost comical" setup that created a working cellular network that routed a few hundred calls over a 48-hour period. In each subsequent year, Burgess has improved the system's reach and expects to have about three-quarters of this year's event covered. Burning Man proved an ideal test bed for development of Burgess' system, which he has since made available for use in other areas without cellular networks. "People who have a lot of experience in international aid say Burning Man is a very good simulation of a well-organized refugee camp," says Burgess. "Because there's no infrastructure, it forces us to contend with a lot of problems that our rural customers have to contend with in very remote places."