Wine.app
Wine.app is a bundle for Wine. Our target is to offer Wine in a flavor, that makes it easy to use on OS X.
http://winebottler.kronenberg.org
Wine
Wine lets you run Windows software on other operating systems. With Wine, you can install and run these applications just like you would in Windows.
Wine is still under active development. Not every program works yet, however there are already several million people using Wine to run their software.
Open Source and User Driven
Wine will always be free software. Approximately half of Wine's source code is written by volunteers. The rest is sponsored by commercial interests, especially Codeweavers who sell a supported version of Wine.
Wine is heavily reliant on its user community. User tests fill our Application Database to track how well programs work, and all the answers in the forums come from volunteers.
License
Wine is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version
Learn more
http://www.winehq.org