Check it out at: http://dota2.wanmei.com/
Right now it’s got a collection of the hero spread artwork that Valve uses on its blog posts, a couple Dota2-related videos, and some epic music. No signups for access to Chinese Dota2 yet, but this is another step closer.
note: technically, as some readers have pointed out, this is not ‘officially live’, and indeed some of the videos on the site allude to a dota2.com.cn, which is not yet accessible