UCK is a tool that helps you customizing official Ubuntu Live CDs (including Kubuntu/Xubuntu and Edubuntu) to your needs. You can add any package to the live system, for example language packs, or applications.
The new release is available for download, read the official announcement with download links, if you find bugs or anything else, please tell us!
Thank you very much to everyone who contributed!
Currently UCK is a registered product on Launchpad, so see there for bug reports and other information: https://launchpad.net/products/uck.
Development has moved to SourceForge: project is called uck.