RMS Server SP2 is released on Dec and available for download.
http://www.microsoft.com/downloads/details.aspx?FamilyID=5794538f-e572-4542-a5bd-901b2720f068&DisplayLang=en
New features in SP2:
l Native support for SQL Server 2005
l Support for SharePoint Server 2007
l Security and flexibility enhancements
For more details, please refer to:
http://technet2.microsoft.com/WindowsServer/f/?en/Library/db48fba3-675f-4598-bdd5-6ee4c7c0e70f1033.mspx