The Reuters article suggests that there has been some growth in Bing’s Chinese usage since its launch in June. The Chinese Internet is heavily censored by the government, which has been an ongoing source of controversy for American companies and search engines doing business there. Google and Yahoo have been roundly and repeatedly criticized for their participation in that censorship.
http://searchengineland.com/microsoft-hopes-to-grow-bee-ying-bing-share-in-china-32527