BBC News writes:
Japan’s biggest mobile phone provider is preparing to extend a new service which allows customers to use their handset as a credit card.
First [Docomo] launched a ‘mini’ service in April which offered customers as young as 12 years old access to a monthly credit line of around $90 (50, 10,000 yen).
Paying for goods could not be simpler. Users of the service just wave their phone in front of a dedicated reader in the store. They are billed later for the purchase together with their monthly phone charges.