Look here:

New start button!

Transparent Windows & Device Manager is not signed by Microsoft:

And much more.
I will fill the gaps today. ( I am installing Windows Vista Beta 2 now ). Installer says, "Installation is taking longer than exptected, but should be finishing soon" :(
Blue Screeeeeeen during the finishing installation :(((
Damned! I have tried to install 4 times and all 4 times FAILURE! :(((