Based on 2013 numbers, .6% would be 6 million iPhones, which equates to 4.8 billion in additional revenue.
Pour me a glass, please.
I think your calculation is off a bit. That .6% is relative to US iPhones not all iPhones in the world. None the less, the point stands that it still equates to big dollars. And if I can get .01% I would buy everyone a glass.