Does Flip 3D exist in Windows 8? If so what is the key combination?

Flip 3D does not seem to be part of the Windows 8.

I also had a look through the local policy and can not find anyway to enable/disable. Looks like it may be gone for good.

Hitting ⊞ Win + Tab now brings the new Switcher which shows all open apps down the left hand side of the screen.

There is a third-party version that does the same thing: WinFlip.

WinFlip is a 'Flip 3D' function for Windows XP It provides an alternate window-switcher to the standard Windows Alt-Tab. Winflip displays all open windows in a 3D stack, which the user can flick through and select using either keyboard or mouse.

Switcher is the replacement for Flip 3D:

http://www.winsupersite.com/article/windows8/windows-8-feature-focus-switcher-142967

The Aero code is being stripped out of Windows 8.