China Mobile may be the world's largest telco with 655 million subscribers, but it's missing one major ingredient that any top tier carrier needs -- the iPhone. Apple's exclusivity deal with China Unicom is about to come to an end and China Telecom is going to start selling the 4S next week. Yet, China Mobile, the state owned behemoth, won't be joining the iOS fray officially until it starts shipping with an LTE radio (which we assume will happen next year). Still, according to the company, it has managed to rack up 15 million subscribers using unlocked iPhones on its 2G network. Perhaps most amazing, is that it was only in October that China Mobile announced it had 10 million subscribers using Apple's pride and joy. We can only imagine the pandemonium that will break out when the world's most popular phone comes to the planet's largest cellular carrier.