Two iPhones using the same Apple ID account

I recently got the iPhone 5S and everything is fine with that. Prior to that, I had the iPhone 4S. The 5S is activated with my cell provider and the 4S has been deactivated. I want to use the 4S sort of like an iPod Touch. I'm using the same Apple ID on both devices. Whatever I do on one, take pics, edit contacts, etc, it shows up on the other device. I was wondering if there's a way to use the same Apple ID but not have the changes transfer over to the other device?

Why not just sign up for another ID and use different ID on each?

  • Why can i Imessage from the same number, two different iphones? I just recently got a new iphone because the other is messed up. But for some reason as i switched over to the new phone, i could still text people who had imessage on the old phone. But people who didn't, i couldnt text on my old phone. Why does this happen? Is it because its not really a "text" message?
  • Two different computers, two different iTunes.can I use the same Apple ID? I have iTunes on my computer that I use for my iPhone, and my mon just got an iPod Touch and wants me to fill it for her. I'm going to use her computer to do this, which currently does not have iTunes. Once I download iTunes, can I use my own Apple ID to download songs and apps onto her iPod? Is it possible to do that without disturbing what's on my phone, or do I have to make a whole new iTunes account for her?
  • Two devices with the same Apple ID? Okay, so my dad FINALLY gave me a ipod, since i'm to 'young' to have a phone. He owns a iPhone and i have the newest version of the iPod Touch. We use the same account and i wanted to know if the apps i download will download to his phone. And if i start using facetime and iMessage, if its going to send it to his phone as well? I added another email address (MINE) for the iMessage and Facetime, would that change anything? please anwser
  • Is tbere any major différence between thé iPhone 6 and the 6s? Whooppeee is Xmas again and my daughter wants new 2nd hand) iPhone… 2 years ago almost bought her 5 before i réaliséd that it was 5s she wanted ( cos thé 5 sucks?) And I don't want to screw up this year…