Review of Qubes OS beta 1, Linux distribution aimed at security through isolation using disposable virtual machines. Qubes OS comes from an elegant concept: if you can isolate functional components within disposable containers, and you can separate those components that can be tainted through their interaction with the outside world from the core subsystems, you stand a good chance to preserve the integrity and security of the base Operating System at the possible expense of needing to jump through some hoops to move data around the system. All in all it sounds like a good proposition if it can be demonstrated to be practical.