The disconnect is staggering, no? I mean, I got used to mtgox prices being 10% higher than bitstamp, but right now it's more than 20%, and China's price is just plain unreal considering how much lower Bitstamp is.
What do you expect to happen? China pulling the rest up again, or the Bitstamp pulling everyone down? Or will it stay the way it is? After all, arbitrage between exchanges seems to be slow and not very effective in the past.
Just another theory of mine:
Chinese buying BTC to transfer money/wealth oversea. Guess where do they dump their coins?