The SQL Server Release Services team recently announced that they have released a new Cumulative Update for SQL Server 2008 SP1:

http://blogs.msdn.com/b/sqlreleaseservices/archive/2010/07/19/cumulative-update-9-for-sql-server-2008-service-pack-1.aspx

This update will bring you to build 10.00.2789.  From the looks of the KB article, a healthy dose of fixes are made available in this update (a lot more than it looks like are in store for SP2).

KB #2083921 : Cumulative update package 9 for SQL Server 2008 Service Pack 1

Note that if you have installed the SQL Server 2008 SP2 CTP (which I talked about previously), you should not attempt to install this update.  It is likely that shortly after the final release of SP2 is made available, there will be a follow-up Cumulative Update that will be published, and will include all or most of the fixes from CU #9.
 

Edit for Roger Falor: yes, the 64-bit version is available.  When you go to the KB article and select "View and request Hotfix Downloads," the KB article tries to do you a favor, and presents you only downloads for the platform you're currently running.  So in your case, you've probably gone looking for the 64-bit hotfix but you're using an x86 machine.  Here is what you'll see:

If you click on "Show hotfixes for all platforms and languages," you will get more options.  I've highlighted the one you're after in the following screen shot: