I (like a lot of other people) do not like iOS 4 for the iPhone 3G. It's slow, doesn't respond, apps crash, and I very much regret it. Why not just get the iPhone 4? Waiting for the iPhone 5. Otherwise, I would get the iPhone 4 as soon as possible. So, I looked up on the internet on how to downgrade, and it showed me how. I have restored my iPhone so many times it's starting to get annoying. The only thing I can find in the folder that Apple iTunes searches is the iOS 4.0 restore. That's what I restore every time in order to use my iPhone again. I downloaded the file, so why isn't it there?