Google.cn redirecting to Google.com.hk

On Twitter, reports are surfacing from internet users within China that Google.cn is suddenly redirecting to Google.com.hk. Rebecca McKinnon tweets, "If you go to google.com.hk it says 欢迎您来到谷歌搜索在中国的新家 which means "Welcome to the new home of Google China search. (…) For those who aren't steeped in the intricacies of Hong Kong's legal system, websites in HK dont censor political content." Update: confirmed, and more first-person notes.