Re: iOS 7
^ Yes, it is. The difference is, when you do that double-tap, the apps appear as windows on the screen itself, rather than as icons at the bottom of it. You can swipe among different apps (or swipe UP to quit).
It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shakes, the shakes become a warning. It is by caffeine alone I set my mind in motion.