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“A new company called FreedomPop emerged from obscurity in March, promising the public something quite hard to believe: a free 4G mobile internet connection... so long as you purchase one of its three upcoming products. The first of those items, a $99 hard plastic iPhone sleeve, is now available for preorder, bringing with it 500MB of free 4G data per month.
All existing iPhones can only use 3G networks, including those getting AT&T's faux-4G signal. Even so, the company claims that the sleeve will give your phone the power to use mobile internet with 4G speeds. The sleeve can also transform your phone into a 4G mobile hotspot.”