Apple's iPhone 5s assembler Foxconn has shipped roughly 1.4 million iPhone 5s units to China Mobile in advance of Friday's launch for the carrier, according to a report from The Wall Street Journal. After several years of negotiations, Apple finally announced last month that the iPhone would be coming to the world's largest carrier on January 17.While the initial shipment volume doesn’t represent the total sales at China Mobile for January, the figure helps to gauge early demand for iPhones from China Mobile, the world’s biggest carrier by subscribers with more than 760 million customers. China Mobile began taking preorders for iPhones since Dec. 25. “Shipping one million or more iPhones to a single carrier per month is substantial. But we have