Windows Server 2008 "R2" is out. This new release adds a lot of features that can help an organization.  We have been testing these changes for some time, and really dug in to see how it helps our clients. 

An e-book has been issued by Microsoft that may be helpful to understand what is now available.  You can access it by going here:

http://www.microsoft.com/windowsserver2008/en/us/default.aspx

Enjoy!