Wi-Fi is useless without a hotspot. Sure, thousands of spots are available, but few are free, and coverage is far from ubiquitous. What if you could marry the short-range power of Wi-Fi with the huge coverage areas of high-speed cellular services such as EV-DO to create a portable hotspot? You could use any Wi-Fi-enabled gadget anywhere you’ve got a cell signal. Play multiplayer games with friends in the park, or blog an event in real-time. Since EV-DO works at freeway speeds, you could even give Internet access to an entire road-trip caravan.
Those are exactly the kinds of things you can do with the hot spot backpack and Popular Science shows you how! Its secret ingredient: the Junxion Box. Plug a cellular-network card into the book-size open-source-based device, and voilà—instant Wi-Fi hotspot, with speeds averaging around 700 kilobits per second.
http://www.popsci.com/popsci/how20/6a278ca927d05010vgnvcm1000004eecbccdrcrd.html
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