Well, if you have 2 monitors and high enough resolution you can have up to 6 Windows 8 style apps on screen at the same time. In fact, you can have even more if you mix Windows 8 and regular Windows Desktop apps.

And in an even more exciting feature, Windows 8 remembers each screen's workspace so that if you have a set of multiple apps sharing a screen and then they get put in the background, you can bring them forward laid out exactly the same as when they were hidden. No longer do you have to bring back each one separately and repositioning everything.

So stick in there until the end to see all the great features of Windows 8.1 app management.