Roughly nine months after the device’s local release, South Korean iPhone carrier KT has announced that sales of the iPhone have passed the one million unit mark. Yonhap News Agency reports that KT saw activations reach 1.02 million as of Aug. 16, and expects sales to reach 1.2 million in early October. The company received 350,000 pre-orders for the iPhone 4, which launched in Korea on Sept. 10; AllThingsD notes that roughly 200,000 devices…