@ http://www.joystiq.com/2007/05/07/ps3-is-region-free-but-theres-a-hi-def-catch/
In the world of PAL and NTSC, PS3 games will work region free only if you have a high definition TV. Otherwise you will get this error "This game not supported (80028F10)" on your console.
So, it is region free, sort of.