BusinessWeek: Apple is widely celebrated for making devices as easy to use as they are elegantly designed. What customers probably don’t know is that some of these features aren’t exactly new—they evolved from software Apple created to help disabled people use PCs. Among them: the new iPhone’s voice control option, which allows users to speak to their handsets to prompt an action, such as calling Mom, or to get a spoken answer to such questions as “What song is playing?” And “mainstream
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