The store was the scene of many technological innovations this year. More supermarkets either tested or rolled out a number of new systems, ranging from biometric payment, color coupon printers, shopping cart tablets and self-scanners to deli ordering systems, kiosks, digital media and even cell phones as loyalty vehicles. Biometric payment continued to make headway in food retailing in 2006. As of November, slightly less than 1,000 U.S. food retail and convenience store locations were ...

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