Evolution bad or evil ?
The have been some discussions on the fedora-devel list on the latest Thunderbird 3 Beta 4 release, because it introduce some new features there make things look and feel different. It looks like there is 2 kind of opinions.
a). This kind of changes should never enter a stable release of fedora as an update.
b). Let me have the latest and greatest as long as my system don’t blow up.
I feel most for b), if I was feeling for a), I would use RHEL/Centos, instead of Fedora.
One of the reasons I use Fedora, is because it evolves over time, not only between releases, but many of the applications also evolves on the current release and of cause we can’t change the low level parts of the system on the current release and use too unstable components, because it will make peoples systems blow up and we don’t want that. But that don’t mean that we can’t evolve and discover new grounds.
If you don’t like some changes in a application like thunderbird, then don’t beat up the maintainer, take it upstream. It is one of Fedora values to follow upstream and if upstream make a change like disable ‘Ctrl-Alt-Backspace’ in X, then Fedora will follow. You can always enable it on your system, if you like an easy way to kill your GUI in a moment of anger. 
One of the great things about Fedora and Linux is you have a lot of choices and if you don’t like something, then turn it off or use some other applications there better fits you needs.
