Samsung sold three million of its original Galaxy S phone in 85 days. A few months later, a full ten million had been moved. Now, it looks as if the superphone's proper successor may put that latter statistic to shame. The outfit just announced that it took but 55 days to move three million Galaxy S II handsets, which works out to one phone every 1.5 seconds. It's Sammy's briskest-selling smartphone ever, and we're guessing that it'll keep up the pace once that AT&T variant lands on US soil. Which is coming soon, right Samsung?