While some of wait to see if NFC (Near Field Communications) takes off as the mobile payment system technology of choice (it doesn’t look to be it so far), Sprint partnered with American Express and its Serve mobile digital payment system available to its customers.
However, access to this service is limited to “select” Sprint Android powered smartphones. So, it is not a universal mobile payment solution for Sprint customers. Serve also currently supports iOS (iPhone, iPod touch, iPad) and support is planned for Microsoft Windows Phone and RIM BlackBerry.
ReadWriteWeb notes that an American Express card is not required to use Serve. Transactions can be funded using a bank account, debit or credit card, or from another Serve account.
You can learn more about American Express’ Serve at:
Via ReadWriteWeb: American Express’ Digital Payments Platform Serve Teams with Sprint