Only the Business, Enterprise, Ultimate and Home Premium editions of Windows Vista include Aero with Flip 3D.
Windows Aero features a transparent glass design. Windows Aero includes taskbar previews for your open windows. You can point to a button on the taskbar and see a thumbnail-sized view of the window and its content. Flip 3D also provides a way to arrange your open windows in a three-dimensional stack that you can quickly flip through without having to click in the taskbar at the bottom of the screen.