Walmart has expanded its use of the "Scan & Go" iPhone app from a
single-store test to 40 locations in the Denver area. Shoppers who
download the app can scan items with their phones as they walk the
aisles of the store. When they're finished, they select "done shopping"
and the app creates a unique QR code that is read at a self-checkout
station where the customer chooses a payment option to complete the
transaction, according to published reports.
Continue reading Walmart Expands iPhone-Based Self-Checkout to 40 Denver Stores.