Today Apple posted info regarding the features of the next version of OS X, Mountain Lion, which includes the following:
"All-new features for China
It’s a new Mac experience in China. OS X Mountain Lion brings all-new support for many popular Chinese services. And they’re easy to set up. Mail, Contacts, and Calendar work with QQ, 163, and 126. Baidu, the leading Chinese search provider, is a built-in option in Safari. The video-sharing websites Youku and Tudou are included in the new Share Sheets, so users in China can easily post videos to the web. They can also blog with Sina weibo, the popular microblogging service. And with improved text input, typing in Chinese is easier, faster, and more accurate."
Engadget adds some more detail in its description: "including better word and phrase suggestions, autocorrect, enhanced handwriting recognition and the ability to type in English without changing keyboard settings. "