By Paul Thurrott
With Windows 8, Microsoft is bringing its integrated, Metro-style experiences from Windows Phone to traditional PCs and new computing devices. Integration means many things, but one of the big benefits is that you no longer need special apps to perform individual tasks. So rather than interact with Facebook using a Facebook app, and access Twitter from a Twitter app, you can do both—and more—using a single, integrated Windows 8 experience.

Source: Paul Thurott's SuperSite for Windows