Wal-Mart Tests iPhone-Enabled Self-Checkout

Wal-Mart is testing a system that would allow shoppers to use their iPhones to scan items and then pay for them at a self-checkout counter at a store in Rogers, Ark., near the company's Bentonville, Ark., headquarters. The retailer's iPhone app already allows shoppers to create lists and see which items are in stock, but doesn't currently include a payment function.