It is an idea that was just waiting to be implemented: using your iPhone to scan product barcodes at retailers. Apparently, the world's largest chain of retail stores agrees. Walmart announced Wednesday it will offer the feature across more than 200 stores in twelve additional U.S. markets, stretching from Seattle to Oklahoma.
Although the move triples the size of the retail chain's Scan & Go program, Walmart said it still wants to get customer feedback before rolling out iPhone-based price checks in all stores...