Microsoft has already released their Service Pack 1 for SQL Server 2005. The Service Pack will address over 40 issues. I believe that this SP1 will allow us to use Database Mirroring functionality, which I am very happy about.
Article at ComputerWorld http://www.computerworld.com/softwaretopics/software/story/0,10801,110663,00.html
The Service Pack can be downloaded at http://www.microsoft.com/downloads/details.aspx?FamilyID=cb6c71ea-d649-47ff-9176-e7cac58fd4bc&DisplayLang=en
-paul