BEIJING, CHINA - JANUARY 17: (CHINA OUT) Tim Cook, Chief Executive Officer of Apple Inc., and China Mobile Chairman Xi Guohua (R) visit a China Mobile shop to celebrate the launch of iPhone 5S and iPhone 5C on China Mobile's fourth generation (4G) network on January 17, 2014 in Beijing, China. Apple Inc. and China Mobile Limited, the world's largest carrier with over 760 million subscribers, signed a deal on December 23, 2013 after six years of negotiations. (Photo by VCG/VCG via Getty Images)
