This has been mainly due to the smash hit that were the Samsung Galaxy S and its US carrier versions, which have sold more than three million units in the US to date. The Galaxy S versions are currently available for all major US carriers. Dale Sohn, the president of Samsung Mobile says in the press release:
“I want to personally thank everyone who selected a Galaxy S smartphone as their mobile handset of choice. Neither of these wonderful accomplishments would have been possible without the loyalty and support of our customers. The Galaxy S portfolio has played a significant role in Samsung’s success in 2010 and we are extremely excited to show you what products, services and innovations we have in store for the U.S. market in 2011.”
If what's in store for us in 2011 resembles the Google Nexus S, we'd say bring it on, Sammy.