Is MiFi the future of wireless internet -- or a fad? - CNN.com: "The devices, many of them smaller than a smartphone, are similar to the wireless routers in many homes except they don't need to be plugged into anything.
They connect to a cellular carrier's data network. Once the battery is charged, a MiFi can be taken anywhere, and it provides a Wi-Fi signal to computers or iPods in a nearby vicinity."
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