The GNOME 2.2+ WindowManager. According to its author, Havoc Pennington: "Boring window manager for the adult in you. Many window managers are like Marshmallow Froot Loops; MetaCity? is like Cheerios." The first release of Metacity was version 2.2 - it has no need for your petty hangups about version numbers. It is configured entirely through GConf.
The name does not mean meta-City as in an urban center, it means the state of being meta, just like opacity is the state of being opaque. It may also have something to do with the Meta key on Unix keyboards.
3 pages link to Metacity:
