The retailer’s iPhone app allows shoppers to scan the items they want to buy and use a generated barcode. Walmart has just announced that it intends to broaden the use of its iPhone based self checkout program that uses QR codes, so that it will now become available at 40 locations within the Denver area. The app generates a barcode that represents all of the scanned items in the customer’s cart. The iPhone application functions by allowing customers to use their phones to scan the barcodes on all of the…
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