A lot has changed in Vista, most notably its graphical user interface (GUI) that we mortals use all the time. For Vista, its been named "Aero" which stands for Authentic, Energetic, Reflective and Open. To experience Aero, you need a DirectX 9 compatible processor with arleast 128 MB of Video RAM. Also you cannot experience Aero "magic" if you have Windows Vista Home Basic on your machine.
1. Taskbar thumbnails: See thumbnails of minimized application windows
2. Windows Flip: Visually nice Alt-Tab feature
3. Windows Flip 3D: See all open Windows in a 3D stack.
4. Nice sliding,gliding windows