The ability to leave your wallet at home and pay -- or get paid -- for everything with your iPhone is a hot ticket for financial service providers, and today it got even hotter.
Amex announced a new payment service called Serve that is available immediately, and while you'll still need a card for paying for items at locations that take American Express cards, that card is completely tied to your Serve account. The Serve card can be reloaded either from the Serve website or from an iPhone or Android-based phone app, then used at any Amex location.
The company also wants you to use Serve to facilitate person to person transactions. Amex uses the examples of paying your nanny, paying an allowance to your kids, or givi
