MySQL has introduced MySQL Forge, a new Web site and community directory designed to encourage and support active MySQL-related open source development.
Read the announcement here
Located at http://forge.mysql.com, MySQL Forge is a central online resource for all MySQL users and developers to communicate, collaborate and share MySQL code and applications.
Ubuntu is the fastest-growing Linux distribution and has been widely adopted within the open source development community. Based on Debian GNU/Linux, Ubuntu uses only free software to provide a modern, yet stable operating system for the average user. Starting June 1, MySQL binaries and source code for Ubuntu will be available for download directly from the MySQL Developer Zone and bundled with Ubuntu.
It is also commented here