iOS 7: Quit multiple apps at once

Multitasking iOS 7iOS 7’s new app switcher view shows the full screen of each app and users can swipe up on the screen to quit an app. However, using multiple fingers, users can swipe up on multiple apps at a time to quit them. Up to 3 apps are visible at a time and, using multi-touch, all three can be dismissed upward simultaneously.
[thanks Shawn Plaktus!]