The Galaxy S II is the best selling phone in several countries, in others it's a close 2nd to the iPhone 4. I'm not sure it's possible for it to sell a "hell of a lot more" unless every single person bought one, (would you make the same argument for the iPhone 4?).

Samsung have just overtaken Apple in total smartphone sales, though they have a few more models than Apple. But if you look at the trajectory (they came from nothing in the last year or so) it's only a matter of time before their flagship outsells Apple's in more countries than it already does.