An interesting discovery made through "Google in Your Language" gives us a few hints about an unknown service called "Fensi". The requested translations for the service make it sound like a social network site -- but I'm not sure about that since they have Orkut securely under their belt. Here is a screenshot:
A few months ago I received an anonymous (and thus potentially unreliable) tip from a "Trusted Tester". He told me of a service coming soon that he would only describe as a mix between "MySpace meets Microsoft Live". I still don't know what that would be -- maybe he was talking about Fensi?
Another good idea put forth by Philipp Lenssen suggests the word "Fensi" sounds similar to the Chinese word for "Fans". What do you think it could mean?