Interesting!
Source: http://news.yahoo.com/s/nm/20080519/tc_nm/summit_microsoft_dc_2;_ylt=AsKL2pjELwGF53bquJszSVIE1vAI
SEATTLE (Reuters) – Microsoft Corp (MSFT.O) sees tens of millions of corporate e-mail accounts moving to its data centers over the next five years, shifting to a business model that may thin profit margins but generate more revenue
More here too:http://blogs.msdn.com/stevecla01/archive/2008/05/20/50-of-exchange-to-be-exchange-online.aspx
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