The first QR Code grocery store in a subway station was in Seoul, South Korea on February 28 on the platform of Seoul Subway’s Line 6. There was some debate as to how long it was there but it seems the campaign was there long enough to retain the prize it had won at the Cannes Lions Festival (See: Did the ad agency make it all up?). Now we hear of at least twelve others, this time in China (see TV video below). Subway lines in Shanghai and bus stations in Beijing have been equipped with billboards showing around 80 products with QR Codes. The company behind the experiment Shanghai based online shopping company Yihaodian (in which Walmart has an investment) does not charge for delivery on orders that total over 100 yuan ($15.50) and are less than 10 kiolograms in weight.