I dare say QR codes have not gone totally mainstream, although their popularity continues to be on the rise. Only recently, I found out that some people I know personally have created QR codes containing information that is usually transmitted via vCard. Obviously, I am not there yet, but it is certainly a convenient way of sharing your contact details with others, especially with how prevalent smartphones are these days. Additionally, we’ve heard of QR code tattoos – even QR code tombstones!
There is nothing quite like the world’s largest QR code, though, and not only because of its size.