How do you download a previous version of the iPhone SDK?

Question

I'm developing on the current 3.1 SDK, but I'd like my app to support all versions of the iPhone 2.2.1 onwards. I don't have a copy of the older SDKs around anymore and I can't find them on Apple's site. (We've always been at war with Eastasia.) Is there still a way to get it from the iPhone Dev Center?

Answer 1

I think the answer you're looking for is here. Basically the SDK you want is part of the 3.1 SDK, you just have to configure your project to leverage it.