Printing Gets More Interactive

In the future, the QR code idea could be coupled with the ability to pay for products by cell phone–already common in parts of Asia–to allow promotions such as beverage coupons with QR codes that a cellphone can scan and then present as full payment at a suitably equipped vending machine.

From "From the Page to the Internet, via Your Cell Phone"
Beyond Print (05/14/09) Alexander, G.