You Can Download Windows 8 Developer Preview! :D
http://msdn.microsoft.com/en-us/windows/home/
Edit_1:
Oh god, what have they done?
http://www.youtube.com/watch?v=1Hq95vtoS28
(pretty sure the desktop shown is Windows 7 -they were running windows 8 within a VM)
Edit_2:
k, there is a desktop. It's not the one shown in the video but it looks like you can disable the apple B/S.
Edit_1:
Oh god, what have they done?
http://www.youtube.com/watch?v=1Hq95vtoS28
(pretty sure the desktop shown is Windows 7 -they were running windows 8 within a VM)
Edit_2:
k, there is a desktop. It's not the one shown in the video but it looks like you can disable the apple B/S.