Voice, Loyalty, Exit:
"We launched Google.cn in January 2006 in the belief that the benefits of increased access to information for people in China and a more open Internet outweighed our discomfort in agreeing to censor some results. At the time we made clear that "we will carefully monitor conditions in China, including new laws and other restrictions on our services. If we determine that we are unable to achieve the objectives outlined we will not hesitate to reconsider our approach to China."Update:
See continuous follow-up at: http://twitter.com/kaiserkuo
Censoring seems to be disabled although "uncensored" result seem to have high pagerank crowding out "new" sites. However, Tankman can be found via google.cn, try the mis-spelled query "tianamen", screencapture below:

Update 2:
Details about the attack:
wired.com >> threatlevel >> google-hack-attack/
Details about the vulnerability:
iDefense >> Adobe Reader and Acrobat JpxDecode Memory Corruption Vulnerability