Full-featured multitasking is something that many iPhone fans have been craving for some time. Finally Apple has implemented so-called Full multitasking and has done an excellent job so far.
Press the Home button twice to see preview screens of the apps you have open.
To quit an app, just swipe it up and out of preview
Multitasking has always been a smart way to switch between apps. Now it’s even smarter!
iOS 7 learns when you like to use your apps and can update your content before you launch them now. So if you tend to check your favorite social app at 9:00 a.m. every day, your feed will be ready and waiting for you.
On top of that, smart multitasking leads to intelligently scheduled updates:
iOS schedules updates during power–efficient times. Like when your device is on and connected to Wi–Fi. The goal is not to drain your battery unnecessarily.