Multitasking updated in iOS 7 with new card-style interface
iOS 7 is bringing with is webOS style cards for multitasking instead of the current switcher we've had since the debut of multitasking in iOS 4.
Instead of the usual double tapping of the Home button followed by holding down on app icons in order to clear them out of the system tray, you'll now be able to swipe cards upwards in order to get rid of them.
We've all been asking for better multitasking support for a while now and this should make it much easier to manage and get kill apps faster and more efficiently. Apple also claims the new implementation of multitasking for all apps won't kill battery life any more than the old implementation.