Eighty-five-year-old Chicagoan Martin Shafron, a self-described "computer illiterate," steps into the rotunda-like entrance of AT&T's flagship store in the city's high-end retail district known as the Magnificent Mile. Though Shafron doesn't realize it, he's also smack in the middle of a retail revolution showing off its gadgetry and pageantry from here to Beijing.
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