As promised by Microsoft the awaited Service Pack 1 for Project Server 2010 and SharePoint Server 2010 has now been released. In regards to Project Server 2010, this Service Pack not only solves various bugs, but also adds new functionality to the users. Please read the following release notes: http://blogs.msdn.com/b/project/archive/2011/06/28/announcing-the-release-of-service-pack-1-sp1-for-microsoft-project-and-project-server-2010.aspx
…or go directly to the download site: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=26636#instructions