The Chinese government hasn't really banned Bitcoin in any way -- people there can still use Bitcoin. It should be seen as prohibiting services from transacting with Bitcoin in any shape or form. It's not for nothing that the peer to peer market in China has literally been exploding. People themselves can and will buy themselves into Bitcoin, which is something that even a potential total ban can't even do anything about. If China wanted to ban Bitcoin entirely, they would have done it already. I have seen an interview of BTCC Ceo stating that China might at some point revert its previous actions against Bitcoin, but that it might take years if they ever plan to really do so.