It plays in the U.K. But so far, it hasn't in Peoria. It's a wireless personal shopper. Each individual supermarket customer gets one to roam the aisles with, scanning items as they go. When the shopping trip is completed, they proceed to the checkout. One swipe of the debit card and off they go. It's the EZ-Pass of the checkout aisles, if you will. Tom Murphy, president of Peak Tech Consulting, Colorado Springs, Colo., and former vice president of information systems, Kroger Co., ...

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