There's a similar system already in place in Japan, it's quite impressive. You can link a credit card to your phone and actually use it like a ticket at train g

There's a similar system already in place in Japan, it's quite impressive. You can link a credit card to your phone and actually use it like a ticket at train gates, or buy stuff and pay the bills at convenience stores by scanning the phone. Adoption seems to be a bit slow though, probably because of the risk of linking a phone to a credit card, and sheer habit. http://en.wikipedia.org/wiki/Osaifu-Keitai http://en.wikipedia.org/wiki/Osaifu-Keitai