Hi all,
As posted here, http://blogs.technet.com/markdea/archive/2006/07/13/441493.aspx, there is now a partner specific Unified Communications site at http://partner.microsoft.com/uc.
This is a great resource for any partner interested in knowing more about UC and includes some great tools like the ROI calculator.
I intend to let every partner I would with know about its existence :-)