Google Office: Google Apps for Your Domain

"Bottom line: Google Apps will be used by companies that are relying on an in-house tech fan as their IT department, where larger companies who have a consultant or IT person on staff will stay with Microsoft solutions for these tasks. The truth is, Microsoft Office is great at traditional document creation, but it's lousy at collaboration, and that's the space that Google Apps, Office Live, SharePoint, and lots of other competitors are going after."