This is why is Apple should have set this up more like Backgrounder on a Jailbroken phone. You can select which apps stay active and which ones don't. I don't need a lot of these apps staying active, but must manually close them. I don't care what Apple says at some point if you don't start closing them, you will notice some performance hits. Closing them by holding your finger on one of them till it start jiggling then hit the x? WOW!
This would have been very easy for them to implement!