Multiple monitors is a must-have setup for a lot of people these days. While Windows 7 made improvements to supporting multiple screens with shortcuts like Windows key + P, Windows 8 will go even further. Above you can see a desktop stretching across both dual displays.
Even better is the taskbar actually stretches across both displays. Currently in Windows 7 you need to resort to 3rd party tools to make this happen. These paid tools like Ultramon, just got made redundant. Application icons can optionally display only on the monitor that the application sits on.
Expanding Multi-monitor support even further, the new Windows 8 UI can be positioned on one monitor, with your traditional desktop on the other. Using a keyboard shortcut Windows key + down, you can switch this interfaces.
