A new ad for a job at Apple’s site clearly indicates the intention of the company to integrate technology in iOS for 4G LTE devices. The ad is addressed to Shanghai in China, where coincidentally the chairman of China Mobile had said a few days ago that Apple fully supports the next-generation TD-LTE.
Apple’s job site has a posting for an "iOS cellular protocol sw engineer" who would be based in Shanghai, China. The engineer, would "help develop [Apple's] next generation of iOS products." The position’s duties include: "Implementation, Integration, customization, ...