Hello, I'd like to preorder the iPhone 4 as well as get the battery on current iphone 3g replaced under applecare 2nd year warranty. Can I preorder the iPhone 4 in the next day or two and also call Apple to get a replacement for the iphone 3g under applecare this week? iPhone 3g battery only lasts 2-4 hours per charge after 18 months of use. I basically have it tethered to a power outlet in my car at all times. Thanks.