Bill Gates, chairman of Microsoft Corporation delivers a keynote speech at the opening ceremony of the Boao Forum for Asia (BFA) annual conference 2007 in Boao, Qionghai of south China's Hainan Province on April 21, 2007. The BFA annual conference 2007 opened here on Saturday, with the theme "Asia Winning in Today's Global Economy: Innovation and Sustainable Development". [Xinhua]