For example I'm using the YouTube app and then I decide to go on safari for like 5 minutes, then when I go back to the YouTube app, I can see a 'screenshot' of what I was doing last, me thinking good let me continue with what I was doing, then suddenly the app refreshes. When I had iOS 6 it would take a little bit more longer for this to happen and if I remember correctly, iOS 6 doesn't show you a 'screenshot' making you believe everything is still intact. btw I'm using an iPhone 4S.