So here is the deal, I got the iPhone 4S right when it came out. I am on a 20 month contract with VZW. My previous plan had unlimited data so when I renewed the plan and got my 4S, I had unlimited data. So this is where my question begins: what is the cheapest way for me to purchase the iPhone "5" when it comes out, but stay on the plan I am currently on? Any response would be beneficial. Thanks guys!!!