Sprint Ad Uses the iPhone to Show Off Its 4G Network (Yes, That iPhone)

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Sprint's Overdrive portable Wi-Fi hotspot is similar to Verizon's MiFI: it's equipped with a wireless antenna like a phone, but instead of merely using it, it exports it as a Wi-Fi network that any device with a Wi-Fi antenna can use. The MiFi is great, but it's still just a 3G network--Sprint's Overdrive uses Sprint's fledgling 4G network, which is several times faster and in daily use often approaches the speed of a home broadband network.

So the Overdrive is compatible with any Wi-Fi...