In Leopard, the Kerberos application got mad because the other utilities were making fun of him. So he went and hid in /System/Library/CoreServices and became an application that was summoned by other applications (ie – Keychain Utility) when they couldn’t do their own work and needed him. Directory Utility saw this and decided it looked like a pretty darn appealing way to go. So Directory Utility has now moved into /System/Library/CoreServices. Not that you will always need to use her. You see, if you open the Accounts System Preference pane and click on Login Options you’ll see Network Account Server. Here you can click on Join. With more space in the /Applications/Utilities playground it’s now possible for others to join in the fun. Especially since there are a few developers (such as DeployStudio) who now like to go there to hang out (even if they are uninvited, being from the wrong side of the development tracks and all).