As you are most likely aware, Microsoft has moved to a “Cumulative Update” model for delivering SQL Server hotfixes and updates. This model was introduced in SQL Server 2005 and continues with SQL Server 2008.
Microsoft just announced the availability of CU 1 for SQL Server 2008. You can read about it here: http://support.microsoft.com/kb/956717/en-us
Notice that you cannot simply download the hotfix from the KB, you do have to request it at this time. Generally they make these available for download at some point, so keep checking the site if you don’t want to email them the request for the Hotfix.