I like to imagine that it happened this way: One day the computer guys in Silicon Valley looked over at the mobile-phone industry and realized those carriers have figuredout the ultimate racket. They sell you a phone, lock you into a two-year contract, and anything you want to buy for the phone-accessories, ringtones, games-you have to buy from them. They control the whole thing, from top to bottom, and instead of getting a onetime sale, they get a recurring revenue stream. "Wow!" the computer guys said. "Why aren't we doing that?"
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