Finally, now we are able to get the Exchange Server 2007 RTM!
We can register and download an evaluate version from http://www.microsoft.com/exchange.
How to Buy Exchange Server 2007? Here is the link http://www.microsoft.com/exchange/howtobuy/default.mspx
Technorati : Exchange 2007, RTM
Del.icio.us : Exchange 2007, RTM