The inaugural issue of Gport Weekly has conveniently pulled together what's been published about 3G adoption in China. That's data from China Mobile (TD-SCDMA) and China Unicom (W-CDMA) but not China Telecom (CDMA 2000).
First, W-CDMA technology is widely deployed in other parts of the world and thus well down the learning curve, so their costs should be lower. Second, China Unicom has scored the Apple iPhone deal. Whether this leads to wide adoption and direct revenues I can't guess, but it's clearly an important marketing and status advantage.