> QR Code base system is slow, have security risk and will not work without smartphone. Proliferation of hundred of QR Code based payments system is not a good thing, you need one that works across all countries.

Agree on some security risks. But the cost of creating, printing or sharing a QR code is very low compared to NFC hardware cost and availability. I don’t know what you mean by slow, because it takes about 10 seconds to complete a transaction. QR codes are quite common in cities and towns in India because of this reason (and the other is that Apple, though a tiny player in the market, hasn’t opened up NFC completely for others to use). You can pay another person or a merchant by scanning a QR code on a cheap Android phone. You can pay for a metro or bus ticket by scanning a QR code. You’d likely see restaurants having a QR code for menus instead of paper menus, and many more.