Engadget points out a China Unicom press release which officially announces that the company has come to an agreement with Apple to sell the iPhone in China:
The announcement ends months of rumors and speculation about Apple's entry into the Chinese mobile phone market. Few details were provided in the announcement. Previous rumors had suggested the Chinese iPhone would be customized for that particular market even excluding Wi-Fi capabilities.On 28 August, the Company and Apple reached a three-year agreement for the Company to sell iPhone in China. The initial launch is expected to be in the fourth calendar quarter of 2009. This will provide users with brand new communication and information experience.
Article Link: China Unicom Announces 3 Year iPhone Deal