The Three UC Amigos blog (http://blogs.technet.com/ucedsg/default.aspx) has blogged about some of the new functionalities that will be found in the new release of OCS (OCS 2007 R2).
You can see the new OC R2 screenshots at http://blogs.technet.com/ucedsg/archive/2008/11/20/what-i-like-about-ocs-r2-thus-far-and-some-new-r2-screenshots.aspx