So I posted this but missed the golden nugget near the end
Original Source: http://news.yahoo.com/s/nm/20080519/tc_nm/summit_microsoft_dc_2;_ylt=AsKL2pjELwGF53bquJszSVIE1vAI
Microsoft has already signed up large customers to its online services. The company said Coca Cola Enterprises Inc (CCE.N) signed up 70,000 seats for Exchange Online, switching over from IBM’s Lotus Domino system.