[youtube]http://www.youtube.com/watch?v=fGaVFRzTTP4[/youtube]
How would you like to do your grocery shopping while waiting for your train to arrive?
Train commuters all around South Korea are now using their smartphones to shop.
Grocery chain Tesco put up billboards in subway stations – an exact replica of what you’d see on supermarket shelves – with their range of products, accompanied by Quick Response codes.
All people had to do was scan the QR codes to purchase and have their groceries delivered to their doorsteps.