I was just wondering if it would be worth it to trade my 4s in for a 4. The battery life is extremely important to me and my iPhone dies literally a third into the way of my day. I have been following almost every battery life post possible and carrying a charger everywhere is not something I want to do. The dual core processor really doesn't matter to me, and the only thing I don't want to lose is the downgrade on the camera. Opinions?