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The Linksys WAP11 -- the cheapest, most versatile wireless access point around -- has an undocumented software switch that puts its output into overdrive, vastly (and illegally) increasing the range and power of the device.
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I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.