This past Saturday (September 25, 08:00 China Standard Time) we saw the official release of the iPhone 4 in mainland China. It was welcomed by thousands of Chinese Apple fans, who camped out at the 3 Apple Stores in Beijing and Shanghai respectively. The actual launch had the fanfare of launches in New York City, London and Tokyo. This is even with gray-market iPhone 4's from Hong Kong and other countries sold in mainland China since it the initial launch in the US.
China Unicom said over 200,000 pre-orders for the iPhone 4 were received since September 17 but only 60,000 of these customers received their phones on the weekend. China Unicom had since stopped taking pre-orders due to the demand. The high demand at China Unicom outlets occurred even though the iPhone 4 sold through, Apple's only official mainland China carrier, comes with a 2-year contract.
Contrary to the iPhone 4 sold through Apple Stores in Beijing and Shanghai which are contract free. Apple have not released any sales figures for the weekend, but we can see from the lines of people waiting outside Apple Stores, many do not want to be locked into contracts. The Apple list prices of RMB4999.00 and RMB5999.00 for the 16GB and 32GB respectively contract-free iPhone 4 are quite high given the average monthly income in China, then again China is a country with the most millionaires, so only time will tell.
So far reports indicate that not only China Unicom outlets are sold out of iPhone 4, the four Apple Stores are also sold out.