Yahoo! News – Picture a world without paper money or credit cards. You’ve got your smartphone in your pocket, and that’s it. Want to pay for something? Walk up to the register, have the clerk check you out, and then tap your phone …
Yahoo! News – Picture a world without paper money or credit cards. You’ve got your smartphone in your pocket, and that’s it. Want to pay for something? Walk up to the register, have the clerk check you out, and then tap your phone …