I just got a demo of Build 5063 of Windows Longhorn, from Microsoft group product manager Greg Sullivan. There are interesting changes from previous versions we've covered at CNET.com, including the removal of some of the whizzy user interface flourishes like the side bar. On the other hand, this OS finally does a very good job of combining very different file organization schemes into one UI, including the standard folders-based file organization, searching, and tagging (which MS calls keywords). I'll put a Works for Me column together on this quick as I can. For latest Longhorn news, click here.