The Office 2010 December 2012 Cumulative Updates are now available, please see the links below:
Project Server 2010 Server Roll up package December 2012 CU (Recommended) – delayed:
Project Server 2010 December 2012 CU (Included in the Server Roll up package):
Project 2010 December 2012 CU:
Remember SP1 is a pre-requisite for the December 2012 CUs.
For more details please see:
As always, test these updates on a replica test environment before deploying to production