The development of technology has filtered in all kinds of social system with a rapid developing pace.
Recently, the Paypal system has updated an app, which is now in measurement in the downtown part of London. You just need to open the app, log in your account, then paste a photo of yourself, and retailer will check your payment by just clicking your photo.You then receives an alert on your phone to let you know how much you have paid as well as PayPal's usual email receipt.
I suppose this allows us to approach a more cashless society. It is freeing customers from cash, cards, change, and other trivial matters. It is perspective that paypal app will cover all English’s phone by 2012.
It is truly becoming a fashion.