BusinessWeek reports the logo on the Hong Kong site has changed from "Gu Ge" to "Zhongguo." The former is the Chinese translation of "Google." The latter is "Google China" in Chinese.
Though a Beijing-based Google spokesperson could not comment on the change, other observers had plenty to say. "They stopped google.cn, so they don't really need to have Gu Ge' anymore," Jeremy Goldkorn, the founder of Danwei.org, told BusinessWeek. "It's kind of symbolic..."