Yesterday I managed to get the Windows version of SlideMagic 2.0 running, generated by a script that eats the same code as the Mac version, but now saving a .EXE file instead of a .app. This means that I can soon open a limited beta testing program across all platforms.
The next challenge is to get certified as a reliable developer, Apple in particular puts up all kind of barriers to installation of apps that have not been vetted.