Sprint is upping its promotion of the combined 3G (EVDO) and 4G (WiMax) Overdrive portable hotspot to iPad owners as an alternative to a 3G-enabled iPad by offering a special case that can hold both an iPad and the Overdrive. The case requires a trip to a Best Buy in a state in which Sprint's Clearwire division offers WiMax service. The Overdrive costs $100 with a 2-year contract at $50-$60 per month for unlimited WiMax, and up to 5 GB of 3G service each month (300 MB outside Sprint's 3G/4G territory).follow link
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Sprint Offers iPad Case for 3G/4G Portable Hotspot