Does the US, or any nation really, care what Reserve Zimbabwe uses? Not trying to be flippant, I'm just not sure that these nations matter at all on the world stage

"Five hundred dollars? Fully subsidized? With a plan? I said that is the most expensive phone in the world. And it doesn't appeal to business customers because it doesn't have a keyboard. Which makes it not a very good email machine." - Ballmer on the iPhone

In the early days its easy to be unimpressed and rightfully so, but its certainly a signal of potential change in the order of things.