via The Verge. According to The Wall Street Journal, Apple signed an agreement with China Mobile, the world’s largest carrier. Apple’s iPhone 5c and 5s already supports China Mobileâ€™s proprietary TD-LTE network and are expected to be available later this month. I wonder which of the two — the company behind the worldâ€™s most popular smartphone versus the worldâ€™s largest carrier — gained the upper hand. My guess: Appleâ€™s overall profits will soar, but profit margins will drop.