Real White iPhone 4 in Chinese Gray Market

GizChinaCrunchGear: These white iPhone 4s are real. How do I know? According to GizChina:

The white iPhone 4 box here has a label warning it is only meant for internal company use and not for sale!

Prices are steep: CNY 5500 (more than US$800) for the base model. The weird thing is: how come all of these white iPhone 4s are retail packaged with all the necessary markings if they were meant only for internal company use?