You might want to double check on this to be sure. I have been on the phone with AMEX and some of my other credit card companies to find out all my benefits of each card. I knew AMEX offered an extended warranty and other stuff. I was doing this research before i purchased my macbook air (which will be here tomorrow!) Anyways, AMEX no longer offers the price guarantee that they used to. They dont offer it on ANY of their cards. They do offer the replacement deal if it gets damaged or stolen, but not lost (yes i confirmed this twice) Also, the extended warranty will extend UP to one year. So if you have a one year warrranty it extends it to two. If you buy applecare as i will on my macbook air, it extends it one year past the three years offering a total of 4 years. Now i didnt get the specifics of how they handle it, but 4 years of warranty for me on a macbook air is good enough for me. Ten to one i wont keep it that long anyways. They did tell me it will also extend the warranty one year on the iphone as well. Call your amex and have them connect you to that department as they did with me. Certain and specific documents must be kept if you ever file a claim. But again, price guarantee and lost no longer are covered with any AMEX card
And yes i will be using my AMEX for my 2 iphone purchases as well!