From what Iknow, Chinese residents cannot pay for goods or services using bitcoin; banks and other financial institutions cannot deal with bitcoin; bitcoins cannot be sold by e-commerce sites; and e-payment services cannot be used to pay for bitcoin. So what is left?
I believe there are other cointries which have taken similar measures; Russia and India, perhaps? (A thread was started in this forum to build a list the legal status of bitcoin in each coutry, but it never got beyond the first draft.) Some countries (like the US) have not banned crypto-coins explicitly, but their existing regulations alerady prevent some of those uses.
If crypto currencies will only be used for clandestine commerce between peers, under risk of legal penalties, they will have failed in their goal.