The new iOS 7 is very apealling to me (I like colorful stuff ) I was just wondering that should I upgrade my iPhone 4S to iOS 7? I heard some people said that iOS 7 on their iPhone 4S is not so good. The performance of the phone on iOS 7 is not as smooth as on iOS 6.1.3. Can you guy give me some comment or review about the iOS 7 on iPhone 4S... Help me make up my mind... Thanks a bunch!