The iPhone 4 will be available through China Unicom with a 2 year contract, or off contract for the equivalent of $743 (16GB model) and $892 (32GB model). The release comes with the opening of two shiny new Apple retail stores, one in Beijing and one in Shanghai.
The previous iPhone offerings from China Unicom did not include Wi-Fi due to bureaucratic policies. The strange thing is that other devices like the iPod Touch have been free to include Wi-Fi. Enjoy FaceTime, China.
Apple iPhone 4 Specifications | Review