As I wrote in the subject -- I'd be interested in maintaining Cinammon packages (RPMs) for Fedora. That's not exactly a contribution to Mint packages, but I couldn't find a better place to ask. I'm not sure what it would take to provide a drop-in replacement for gnome-shell in Fedora or even how realistic this goal is, but I'm willing to experiment. My email should be visible in the user profile, if it's not, here it is, a bit mangled: gstaniak _at_ gmail *dot* com. All responses are welcome.