Bill Gates, left, and Warren Buffett, center, talk with some of China's richest people to promote philanthropy during a dinner and reception Wednesday Sept. 29, 2010 in Beijing. (AP Photo/Xinhua, Pang Xingdong)

Photo by: Pang Xingdong

Bill Gates, left, and Warren Buffett, center, talk with some of China's richest people to promote philanthropy during a dinner and reception Wednesday Sept. 29, 2010 in Beijing. (AP Photo/Xinhua, Pang Xingdong)