US billionaire investor Warren Buffett (L) and Microsoft founder Bill Gates (R) flip over their Dairy Queen Blizzard treats, the most successful product ever released in the history of Dairy Queen, a US desert chain with over 300 stores in China, at the opening of a new branch in Beijing on September 30, 2010.  Gates and Buffett hosted a banquet the previous night for China's super rich that sparked debate about Chinese philanthropy, amid reports that wealthy invitees had been reluctant to attend. The two, who have already persuaded 40 wealthy US individuals to hand over more than half of their fortunes, had insisted they would not pressure attendees for money and simply wanted to learn about charity in China. Buffett is the CEO of Berkshire Hathaway which owns Dairy Queen. AFP PHOTO/Frederic J. BROWN Photo: FREDERIC J. BROWN, Getty / 2010 AFP
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