Hi folks,
Today was released the RTM BITS of Exchange Server 2010, you can now download from your licensing Website 
Download Microsoft Exchange Server 2010 TRIAL
http://technet.microsoft.com/en-us/evalcenter/dd185495.aspx
Virtual Experience
Take a simple web-based test drive. Get your free end
user account to preview Exchange Server 2010 and Office
Communications Server 2007 R2 together for 60 days.
Downloads
Free 120-day Software Trial
Try Exchange Server 2010 in your own environment.
Virtual Hard Drive
Try a pre-configured Exchange Server 2010 VHD.
Exchange Online Trial
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Experience the suite of hosted services
provided by Microsoft Online.
