It seems the South Koreans are on the "bleeding" edge with technology sometimes. Earlier this year they successfully tested 600Mbps download speeds on Advanced-LTE wireless networks. Now, it also appears that they are already shopping with their smartphones, although this technically isn't NFC technology at work yet. The British grocery chain Tesco in South Korea have been testing a new business model for grocery shopping, that has become a big success. The idea is brilliant in its simplicity, and I just had to share it with you. Tesco has what they call "virtual stores" which are basically just giant pictures of grocery items, plastered on subway walls, that each have their own qr code. Scan the code and pay for it with your online cart, and then the grocery items are later delivered to your home! Not only does it make grocery shopping more convenient and easier, it even allows you to utilize your wait time more effectively. It even creates more jobs, by employing delivery drivers! Check out the video above for a perfect idea of the process. I would love to see this in the U.S. as soon as possible! What do you guys think? Source: Shine - Yahoo!