Hi,
According to this article Microsoft have pulled sp2 from the Auto Updater, but it is available for manual download. We have installed it and seen no issues, but saying that Outlook was brand new as the users had just moved to Exchange 2010 and had nothing in the database.
http://www.macnn.com/articles/12/04/20/corrupted.identities.lead.to.suspension/
Best wishes
Michael
