Safari 4 has loads of eye candy and new features—but if moving the tabs above the address bar is too drastic a change for you, you can always change it back—if you're a Mac user, at least. To move the tabs, simply open up a terminal window and type in the following command:
defaults write com.apple.Safari DebugSafari4TabBarIsOnTop -bool FALSE
Restart Safari, and your tabs should be back to the same place they were in Safari 3. The full list of secret preferences includes disabling most of the new eye candy, from Cover Flow to Top Sites—just use the commands from the terminal window and restart Safari. We haven't found a similar method for reverting to the old tab style in Windows, so if you've figured it out, let's hear about it in the comments.