After the registration system update on May 11, 7 days ago, system is
partly malfunctioning and caused register who selected to join Hacking
Days Extra and/or Citizen Journalism Unconference unable to register
and display "System error. Contact Wikimania 2007 Team." It will be
fixed soon after the system's upgrade on May 19.
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Littlebtc / 笨笨的小B / 小犬 (Xiaoquan)
http://zh.wikipedia.org/wiki/User:%E7%AC%A8%E7%AC%A8%E7%9A%84%E5%B0%8FB