Microsoft Corp. founder Bill Gates is seen during his visit with investor Warren Buffett at a Dairy Queen in Beijing, China, Thursday, Sept. 30, 2010. (AP Photo/Alexander F. Yuan)

Photo by: Alexander F. Yuan

Microsoft Corp. founder Bill Gates is seen during his visit with investor Warren Buffett at a Dairy Queen in Beijing, China, Thursday, Sept. 30, 2010. (AP Photo/Alexander F. Yuan)