NEW YORK — Wal-Mart thought shoppers would jump at the opportunity to use a smartphone app to scan items they want to buy as they walk through store aisles. In theory, they could speed through self-checkout. But customers had trouble using the “Scan & Go” app during tests in 200 stores, so…
Source: abcnews.go.com
Test & Learn process kills the Scan&Go mobile. Why they started with iPhone given their demographic and make it easier and cheaper is what I wonder. And they learned customers like to track spending (Plan B success). Other initiatives include same day home delivery. Markets differ though and in Denver the pickup option is much more popular than the delivery (which pins the customer to a location).