Excellent example of MOSS 2007 in action
If you're looking for an excellent example (maybe the first public site) built on Microsoft Office SharePoint Server 2007, then check out the 2007 European SharePoint Conference site here.
This is an excellent example of what you can accomplish with MOSS. It uses an online InfoPath form (served up via Forms Services), variations for 3 different languages (French, English, and German), and master pages and styles for the look and feel.
Well done guys!