For those that are interested, you can download the Exchange 2010 beta
http://www.microsoft.com/downloads/...FamilyID=1898ed2c-2f88-48ac-824e-d3d20fad77d7
http://www.microsoft.com/downloads/...FamilyID=1898ed2c-2f88-48ac-824e-d3d20fad77d7