You'll have "Display English Names Only" enabled. If you go into the Settings app, select "Maps", and make sure "Always English" is set to Off you'll get non-English street names for non-English countries (Hong Kong, Japan, China, Saudi Arabia, etc etc).
Yep, it works, but not easily usable because for non chinese readers, you would have to type the search in English, and then leave the app to switch it to chinese for the taxi driver (and switch it back to English to do your next search).
