If you feel the need to gain an understanding of what is going to be contained in Service Pack 2 for the 2007 Microsoft Office System, the Office Sustained Engineering Team have published a list on their blog. This covers both Office desktop and server products, including Microsoft Office SharePoint Server and Shared Services.
Click here for full details.
2007 Microsoft Office System SP2 is due to be released on 28th April 2009.
Ciao for now :)