The PS4, which is scheduled to be released in November at the delightful price of $400, appears to run an operating system called Orbis OS, which is a modified version of FreeBSD 9.0. FreeBSD is a free version of BSD Unix that is generally fairly compatible with most Linux applications, and to the untrained eye a BSD-based system looks a lot like Linux. In theory, with a bit of work, this means you could almost take a PS4 game and run it on a Linux PC -- but don't get your hopes up for some kind of Linux gaming renaissance.