App Store Submission Process using Unity or UDK

I responded to a mobile twin cities thread about developing for iPhone without owning a Mac with the assertion that you still needed a mac to submit to the app store with either Unity or the Unreal Development Kit. It bugged me that I hadn’t verified the information, so a couple of quick google searches later, and I confirmed that I had been correct. Both the unity submission process and submission process for the UDK require an apple machine at some point for code signing.