400k Mobiles are on the China Mobile network and by the frequency one can spot these things in the wild (metro, bus, elevators, ...) that number may be very true. Yet Apple continues bricking the phones with every upgrade. Get a clue. One thing left to say is that 400k is a huge number for a quasi worthless brick for it's users, the iPhone has no Chinese input and needs to be "jail-broken" first so you can install 3rd party hacks to get chinese input working. That's a first: millions of customers want to get rid of their US$550-600 and that company does not want their money.

Also Interesting: Smugglers Return iPhones to China