The English version of Wikipedia is accessible in China. The Chinese version at zh.wikipedia.org is still blocked.
Ash in Qingdao and Feng 37 in Guangzhou have confirmed that the ‘unblock’ is nationwide.
Below is a brief history of the ongoing saga of Wikipedia’s availability in China as reported on Danwei:
Wikipedia blocked in China? June 10, 2004
Wikipedia unblocked June 26, 2004
The Nanny strikes again – Wikipedia blocked October 21, 2005
Wikipedia to be unblocked this week? October 25, 2005
Wikipedia unblocked, but is Nanny throttling Youtube uploads? October 12, 2006
Why did China unblock Wikipedia? November 15, 2006
The Nanny changes her mind: Wikipedia blocked again November 17, 2006
Answers.com blocked unblocked in China May 28, 2007
Wikipedia’s own account of its battle with the Net Nanny is here: Wikipedia blocked in China. If all of the above strikes you as ridiculous, don’t forget to torture the Net Nanny voodoo doll.