What is your plan are you asking the cost of an iPhone with a contract or are you in an idea to buy a refurbished iPhone? It is wise to choose the second option which i have said.
You can get some good deals on refurbished iPhone models from Amazon or Ebay. Some people sell temporary unlocked iPhone models for more cost. Such iPhone models would get re locked on future iOS updates and it has to be unlocked again resulting in more expense. Instead you can get a network locked iPhone at low cost and unlock it yourself safer permanently.
To unlock an iPhone visit http://www.simpleunlocking.com/apple/rs16wp8/ and get the remote unlocking service. This method of unlocking is safe, simple, affordable, quick and permanent. It doesn't require a jailbreak too.
It depends. If your a new At&t customer or your eligiable for an upgrade on your account your going to pay $199 for the 16gb, or $299 for the 32gb version when you sign another two year contract. For customers who aleady have At&t and are not eligiable for an upgrade your going to pay $399 for the 16gb and $499 for the 32gb.
Well, I don't have a plan yet, and I just wanted an estimate...which one would it be? I don't need a ton of space...just stuff like facebook phone and maybe a couple of other little apps.
You can also buy an unlocked Iphone and stick your current sim card in and it works. Which is what Idid since I dont like at&t :)