I've used the Adobe AIR packager for iPhone, and it only requires a p12 certificate, and a mobileprovision file, what you have to require from Apple. Also a loading screen and 2 icon required.
Then it compiles your Flash game and package it into an .ipa file on the PC, no MAC required. I think they adding some type of VM into the ipa, and your flash semi-compiled, but I'm not sure. Adobe say, that they have to compile the Flash, because of the Apple permit to run interpreted code in the iThing.