Cell phone or credit card?

Who has not spent a grip on time to pay the restaurant bill and the little machine card did not work. This damages the image of the enterprise and also makes the client uncomfortable. "The machine now works as a mobile phone chip. Why not take it away from the scene and only use the device of the client? "Suggests Meira. The idea is to eliminate the plastic used in the production of the card and turn the phone itself in two in one: small machine and cardboard. There are already some initiatives with the use of the device in place of a credit card, but nothing used in large scale and may ban the use of the portfolio.