My guess is that India will likely leapfrog from cash to mobile payments - so in the long run that shouldn't pose as much of a problem to Amazon or any other ve

My guess is that India will likely leapfrog from cash to mobile payments - so in the long run that shouldn't pose as much of a problem to Amazon or any other vendor. There is already a lot of startups and established companies offering mobile wallets, and I believe many of then are setting good traction too.