China Unicom offers free iPhone 4S on multiyear agreements

China Unicom, the second-largest wireless carrier in China and currently Apple’s sole carrier of the iPhone in country, announced a new promotion that would provide customers with a free iPhone 4S when signing up for a multiyear commitment. The carrier announced on its website (via Bloomberg) that a 16GB iPhone 4S will be available free on a two-year contract starting Jan. 13, while the 32GB model will be free on a three-year agreement.