Misconceptions about iOS Multitasking→
Fraser Speirs wrote an excellent piece on how multitasking actually works in iOS. Everyone who owns an iOS device should read it:
Let me be as clear as I can be: the iOS multitasking bar does not contain “a list of all running apps”. It contains “a list of recently used apps”. The user never has to manage background tasks on iOS.
For the record, I have a habit of manually killing all the apps in my multitasking bar, but that’s more because I’m OCD — I already know that it doesn’t actually do anything. [Fraser Speirs]