+Adium is a free and open source instant messaging application for [OS X](https://www.apple.com/osx/), written using OS X's Cocoa API, released under the [GNU GPL](http://www.gnu.org/licenses/licenses.html#GPL) and developed by [the Adium team](https://trac.adium.im/wiki/AdiumTeam).</p>
+Based on the [libpurple](https://trac.adium.im/wiki/LibPurple) protocol library, Adium can connect you to any number of messaging accounts on any combination of supported messaging services and then chat with other people using those services.
+
+## Notable Features ##
+* Open Source, so everyone can see how Adium works and [help improve it](https://trac.adium.im/wiki/Development)
+* Support for a wide range of different Instant Messaging services (see the [full list](http://adium.im/help/pgs/Accounts-ListOfServices.html))
+ * [Address Book integration](http://adium.im/help/pgs/AdvancedFeatures-AddressBookIntegration.html)
+ * [WebKit Message View](http://adium.im/help/pgs/Messaging-MessageView.html): Theme your chat windows
+* [Combined Contacts](http://adium.im/help/pgs/ContactList-CombiningContacts.html): Merge your contacts so that each one represents a person, not an account
+* A sophisticated events system (including [Growl notifications](http://adium.im/help/pgs/AdvancedFeatures-GrowlSupport.html))
+* [Xtras](http://adium.im/help/pgs/AdvancedFeatures-AdiumXtras.html) and many, many other customization options
+* A beautiful icon, the "[Adiumy](https://trac.adium.im/wiki/Adiumy)" duck
+* [Translations](https://trac.adium.im/wiki/Translations): Adium speaks 27 different languages
+
+## System requirements ##
+- **Adium 1.5 or later**: Mac OS X 10.6.8 or newer, an Apple-branded Macintosh computer
+- [Adium 1.4.5](http://adiumx.cachefly.net/Adium_1.4.5.dmg): Mac OS X 10.5.8
+- [Adium 1.3.10](http://adiumx.cachefly.net/Adium_1.3.10.dmg): Mac OS X 10.4
+- [Adium 1.0.6](http://adiumx.cachefly.net/Adium_1.0.6.dmg): Mac OS X 10.3.9
+- [Adium X 0.89.1](http://adiumx.cachefly.net/AdiumX_0.89.1.dmg): Mac OS X 10.2.x and older
+
+Adium X 0.88 up to Adium 1.4.5 are Universal applications which run natively on both PowerPC- and Intel-based Macintosh computers. Adium 1.5 and up require an Intel based computer.
+
+See our [Supported OS Policy](https://trac.adium.im/wiki/SupportedOSPolicy) for more information.
+
+## Contributing ##
+See [our own wiki](https://trac.adium.im/wiki/Development) for ways you can contribute to Adium.