More Variation support, more standard document support, more bug fixes and an upgrade checker (to make sure you can apply SP2)
Should keep those sites happier for longer…
Details from http://blogs.technet.com/office_sustained_engineering/archive/2009/04/23/service-pack-2-for-the-2007-microsoft-office-system-available-today.aspx
Service Pack 2 for the 2007 Microsoft Office system available today!
We're pleased to announce the release of all languages for Service Pack 2 for the 2007 Microsoft Office System, the 2007 Microsoft Office servers, and Windows SharePoint Services 3.0. As promised, this post contains a list of the products that are patched by SP2 with their corresponding knowledge base articles, information on how to obtain the packages, and links to additional SP2 resources. We hope you'll find this to be one of the best service packs produced by the Office team ever!
How to obtain SP2
Recommended Method: Microsoft Update
We recommend using Microsoft Update to apply SP2. Microsoft Update's detection will determine the products and languages you have installed and update your machine all at once.
Optional Method: The Download Center
If you choose not to use Microsoft Update, the SP2 packages are available for download from the Microsoft Download Center. Please click here to find links to the downloads.