As you may already knew, the Service Pack 1 was already released for Windows Server 2008 R2 and Windows 7 clients as well.
I had a few discussions with the other IT people and asking me, why am I installing the SP1. Generally speaking, why I want to install from a disk that has the service pack in it already is because I wanted to keep my PC as updated as possible and instead of me doing an upgrade to a machine that I will update anyways, I’ll just start from an image that has the service pack – minus the head ache of updating one’s machine.
On the server side, I had a chance before to demo one of its feature the “Dynamic Memory” over a TechNet session here in Makati and if you are looking into Virtualization, you may want that feature – and its free with the update, why not yea?
More info at this TechNet link: http://technet.microsoft.com/en-us/library/ff817622(WS.10).aspx and here http://www.microsoft.com/oem/en/downloads/pages/windows_7_sp1.aspx