Fusion Linux has for some time now public github repo [1].
Atfter discussion on our mailing list and on Google+ Github was chosen as coding repository.
If you wish to download whole repository as one zip file you can do that here [3].
If you wish to participate in making best Fedora Desktop Remix join our team and start contributing.
Currently only kickstart files are in github but soon icon files and fusion-welcome script will be included in github repo.
[1] https://github.com/valentt/Fusion-Linux
[2] http://groups.google.com/group/fusionlinux/browse_thread/thread/89f10ba5194cc4ab
[3] https://github.com/valentt/Fusion-Linux/zipball/master