At Microsoft's TechEd Europe 2014 conference today, Joe Belfiore showed off several new gestures that are in the works for trackpad interactions:
•Minimize all open windows by swiping down with three fingers
•Re-maximize all windows by swiping up with three fingers
•When windows are already open on the desktop, swipe up with three fingers to launch Task View, to easily view virtual desktops and open apps
•Swipe three fingers left or right to switch between open apps...
...He also mentioned that Microsoft is making improvements for users who have multiple monitors connected to one PC. "I bet a lot of you are multi-mon users," he said to the crowd of developers and IT pros, "and if you've been a multi-mon user for a long time, you know that some of the things you have muscle memory [for] in Windows 7 don't quite work the same in multi-mon [on Windows 8.1]. Well, I want to show you we're fixing some of those."