Wal-Mart Stores Inc said it is tripling the number of U.S. stores in a pilot program that lets shoppers scan items with their iPhones and pay at self-checkout counters.
Walmart’s “Scan & Go” program will soon be in more than 200 stores, up from about 70. The pilot began near its home office in Bentonville, Arkansas in late 2012, then expanded to Atlanta.
Obviously it’s working well.
Stop and Shop does this as well.
http://www.stopandshop.com/our_stores/tools/scan_it_mobile.htm?svcid=SCAN_IT_MOBILE
It probably works even better at Walmart though because they never have enough cashiers and the ones they do have are horrifically slow (at least in my neck of the woods).