I believe (EDIT: confirmed) that Thurott said the SP1 was basically all the patches bundled into one so if you have kept up on updates and security issues then it shouldnt make a difference except for a minor change in the remote desktop.http://www.windowsitpro.com/article/paul-thurrotts-wininfo/Microsoft-Quietly-Delivers-SP1-RC1-for-Windows-7-Server-2008-R2.aspx