The second largest debit card issuer and fifth largest credit card issuer in the U.S. will launch a proprietary mobile payment app this summer for Android OS 4.4 (or newer) handset users that can initiate NFC-based payments. Wells Fargo Wallet (WFW) will be part of the Wells Fargo mobile banking app. Of the 17 million smartphones and tablets using that app, 5 million are Android smartphone users. This summer, an automatic refresh of the banking app with the WFW feature will be sent to Android users, and Visa consumer and small business card customers will be able to register. Wells customer...