"The PlayStation 3 can probably be considered one of the most customizable consoles on the market. A lot of this doesn't apply to the new Slim sku which can't run any OS's now. With the ability to upgrade your HDD, use external USB devices, Bluetooth peripherals, install open source operating systems (Linux/Unix) and freely customize your own XMB theme, the PS3 gives users a freedom of choice that was never previously established in console gaming until this generation. Not to say that it's really "open" in the sense where programmers, like myself, don't really have the ability to access any hardware acceleration in the RSX because of restrictions by a hypervisor (software systems that run directly on the PS3 as a hardware control and guest operating system monitor) in the available Linux/Unix flavors; this limits any 3D operations that can be done on the PS3 whilst running Linux. But gamers don't really need to worry about crap like that. That's reserved more for the bewildered geeks that get a stiffy trying to comprehend the internal workings of any system - let alone the PS3."