This should be interesting. Please note that you should keep in mind the price costs for the new iPhone 4S as opposed to the prices for the old iPhone 4. Is the cost worth it in your opinion or no? I personally like new things, and Siri, although not as great as I hoped, is still pretty cool. I didn't pay for it with my own money, as I got it as a present, so I can't offer much into that however, from what I have heard - people using the old iPhone 4 are pretty satisfied with it still. However, international calling on 4S is a must for me.