(from http://www.matriux.com)
The Matriux is a phenomenon that was waiting to happen. It is a fully featured security distribution consisting of a bunch of powerful, open source and free tools that can be used for various purposes including, but not limited to, penetration testing, ethical hacking, system and network administration, cyber forensics investigations, security testing, vulnerability analysis, and much more. It is a distribution designed for security enthusiasts and professionals, although it can be used normally as your default desktop system.
HAVE BACKUPS! this is a RELEASE CANDIDATE not final. expect your computer to burn and an inexplicable rash to develop on your ankle. j/k j/k but seriously - caveat downloador!:D