Well, UpsideOut, I think it is nothing but a half baked app. I can't even count the errors I got everytime I tried to do anything with it. I'm even glad that save is disabled because the idea of making these system patches permanent is scary when the app that's making them is so unstable. Basically, this app is messing around with system resources to a point where it will require reinstalling the system to undo the damage. Also, what the author doesn't seem to be aware of is that there are many apps that don't rely completely on the system key mapping, and messing around with the control key and option key for example will create some unpleasant surprises. To know exactly what I mean, try working with photoshop after using it and making some changes. I would really prefer a system extension that temporarily changes things without touching my system, and I can disable it when I want. Final word to the author: Dude, keep your hands off my system, at least until I switch to OS X, where your buggy app won't be effective anyway.