For iPhone FANS,it really was too good to be true. A pair of Apple executives had just described the latest model of the iPhone-the 3GS-onstage at the company's Worldwide Developers Conference in June 2009. The audience loved it. The 3GS was twice as fast as its predecessor, it included a camera that shot video, and the updated iPhone operating system enabled multimedia messaging and tethering-the ability to use the phone as a modem. Just one problem: While many customers in Europe and Asia could enjoy all those features, AT&T, the iPhone's sole US carrier, wouldn't allow video messaging or tethering at launch.
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