I just found the hidden preference for Safari 3.1 that enables Single Window Mode!! This is the first step Apple has taken to actually making Safari my main browser. Before 3.1, there was no way to make links that opened up in new windows open up in a new tab instead (Firefox has had this type of option for a loooonnnggg time). Apple has added a hidden option to Safari as of version 3.1 that lets you do away with the 100 windows you’d normally have open while browsing with Safari and keep it all in nice and clean tabs. Try this in your terminal…

defaults write com.apple.Safari TargetedClicksCreateTabs -bool true

After that, you should notice all links that would normally pop a new window up, now open in a new tab instead. I actually found this while I was bored and going through the Secrets preference pane. If you haven’t tried this out yet and are a little ballsy (i.e. know what your doing) give it a go. It gives you a VERY long list of hidden features in various Apple and 3rd party apps on your system. Sometimes you even find a gem you weren’t expecting. x=)