After crossing the 10 million units moved threshold back in September, Samsung has joyously announced ahead of MWC 2012 that its Galaxy S II family of phones has sold 20 million since launching in April. According to Samsung, taking just ten months to hit the mark puts it ahead of the original Galaxy S (hovering around 22 million sold) by seven months. The hallmarks of this model -- in its many forms as seen above for AT&T, T-Mobile and Sprint -- has been the Super AMOLED Plus screen, slim design and dual core CPUs, all of which made it a record breaker right out of the gate. Samsung's been pretty quiet as Mobile World Congress 2012 approaches, but whenever we see the Galaxy S III, it will certainly have a lot to live up to.