The Windows 8 Release Preview smooths out the Metro multitasking experience in Snap View, a split-screen view that lets you have two Metro apps open at once. The screen is split so that one app appears smaller on the right side, and another takes up the majority of the display. This allows for serious multitasking a feature thats always been essential to the Windows desktop experience, but never a big part of Windows Metro functionality.
For example, you can have a video playing in the main section of the screen, and a Twitter app on the right side to tweet as you watch your favorite TV show. Or you can be reading the news in the main hub, and keeping an eye on your e-mail on the right side. All of the Windows 8 built-in apps actually work in a smaller screen view, and its a surprisingly elegant U.I. to view and navigate.