AT&T (T), Verizon (VZ) and T-Mobile USA (DTEGY.PK) are reportedly working on a venture to...

|By:, SA News Editor

AT&T (T), Verizon (VZ) and T-Mobile USA (DTEGY.PK) are reportedly working on a venture to get consumers to use smartphones as a mobile payment system instead of relying on debit and credit cards. Discover Financial (DFS) and Barclays (BCS) may help roll out a test system. Potential losers: Visa (V), MasterCard (MA). Premarket: VZ +1.5%, DFS +3.9%, BCS +3.9%, V -0.5%.