South Korean iPhone carrier KT has announced that it has sold more than two million of the devices since its November 2009 launch in the country. The Korea Times reports that two million iPhones were activated in South Korea as of January 20, and that 1.03 million were iPhone 4s, while 977,000 were iPhone 3GS units. According to the report, the iPhone 4 has proven to be nearly twice as popular as its predecessor, and KT claims it is now activating…