I have downloaded this release today and have applied this to a test Exch2010 SP1 server. The update release runs and installs successfully, but there is the same result regarding the issues addressed in http://support.microsoft.com/kb/2009942. (I have an Outlook 2003 Online mode user with a Exchange 2010 Mailbox on this server - same issues with moving/deleting e-mails folders - in fact the mails stay there beyond the theoretical 1 minute limit)
I see that this page (kb 2009942) is now available, but under "Resolution", there is not reference to installing this update rollup.
Can MS please confirm that the issues addressed in KB 2009942 are resolved in Update Rollup 3 for Exchange Server SP1? In the MS page about the new rollup: http://support.microsoft.com/?kbid=2492690, it does reference that this issue is one of those many issues resolved, but if you look at the other kb pages for the resolved issues, they all reference that their "Resolution" is to install this update.
Can MS please confirm?