Card network giant Visa launched a tap-to-phone payment pilot for U.S. merchants, enabling them to accept tap payments via their smartphones. The pilot will be initially launched in Washington, D.C., and then in another five major cities in a six-city small and medium-sized business initiative. The tap-to-phone feature allows merchants to turn their android phones into point-of-sale (POS) devices and accept payments from near-field communication (NFC) enabled cards and mobile wallets. Merchants can accept PIN-authentication and PIN-free payments with a Visa-approved mobile payment application. Read more at Retail Dive.