An anonymous reader writes “Bloomberg reports that AT & T, Verizon and T-Mobile USA will be dumping $ 100 million in the development of mobile payment system, Isis, in an effort to battle back against Google Wallet. “Isis aims to get ahead of his rivals by relying on its network of carrier distribution and existing customer relationships. Mobiles introduced to Isis services should be available in stores in urban transport test. … Isis carriers may preinstall software on their phones, making it easier to use. They can also push the handset manufacturers to adopt the software Isis. “