At the RFID/USN Korea 2006, SK Telecom unveiled a new system of ordering fast-food. You simply scan an RFID tag attached to the menu and pay for it via your cell phone. We think this will start a whole rash of being able to pay for services and/or products with your phone, thereby making the need for cash more obsolete every day. By the way, a MacDonald’s Big Mac value meal (which typically sells for $4.65 in the U.S.) will set you back KRW 4,900 ~($5) in Korea. We don’t even want to fathom a guess on what kind of meat they are using to make them.