Amazon.com rolled out a digital wallet for smartphones just days before the release of its Fire, hinting at the retailer’s ambition to make the handset akin to a mobile cash register. The new app, Amazon Wallet, allows people to store loyalty cards or gift cards to use at checkout, Amazon said. Amazon lists about 70 participating retailers, including Dress Barn and Legal Sea Foods, whose gift cards will display a balance in the app. Amazon Wallet will be preinstalled on the Fire smartphone, due out Friday, and can be downloaded from Google Play app store.

http://blogs.wsj.com/digits/2014/07/22/amazon-is-next-up-to-try-a-digital-wallet-app/