From Paul Thurrot's Vista Build 5365 Review:

"This build's casualty is keywords. Previously, users would be able to view and edit keywords that were related to any document or file in the shell. Now, only Microsoft Office documents will have any keyword support: Microsoft is effectively removing this support from the general Vista shell."

So not only are virtual folders almost dead, now they killed the keyword feature? Although I know there's no use crying over spilled milk, but... the shell is just one huge disappointment.

However, I must admit judging from the screenshots Vista is finally starting to look cool (exept for those sidebar gadgets which don't match the general cool slick look), and except for that horrible, horrible Help-shortcut on the desktop which spoils almost every Vista screenshot.