gNewSense will provide users with full security updates and is available for immediate download in LiveCD ISO format along with a version of the Ubiquity graphical installer. Furthermore, the gNewSense team has created a set of software called Builder which allows users to create their own gNewSense-based distributions. gNewSense provides detailed instructions on how to use the software and the recipe to roll out a customized distro.
The main idea here is that the user should have access to the sources of the software - from the kernel to the most common programs. gNewSense is a 100% free distribution. You can find more information about this distribution on the official website.