I think I remember that one of the features of iOS7 is that it "learns" your habits, prioritising apps.
Need to find that piece somewhere.
Here it is:
Because iOS 7 learns when you like to use your apps and can update your content before you launch them. 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. That�s multitasking in iOS 7. It knows what you want to do before you do.
From this article on iMore.
http://www.imore.com/ios-7-preview-multitasking
Now, I'm not going to get into a "what is true multitasking" discussion since that's out of scope for this thread and also because that conversation is always quite heated. We've managed to get to 141 posts without insults or arguments or bickering, just really fun geeky sleuthing. At least it's been fun for me.
Posted from my awesome Q10 via CB10.