yeah....as former part of a piracy community(FORMER!i'm clean now),i found that ps3 games have already been pirated.
there are two ways:

1.iso loader.just like the psp,the ps3 is easily hackable,because it uses linux.as it is an open source OS,i find it hard to believe that no one could make an iso loader.
some group(not saying which) has made one,but i'm not sure if it's fake or not.

2.mod chips.blu ray discs HAVE been cracked,and in america and any countries that technology gives a damn about,they have blu ray-r's,like dvd-r's.
basically you download your games,the same way as you download your psp,ps2,xbox games,and burn them on said discs.
then you just load 'em up on your ps3 and....LOL! playable pirated game.

i am NOT encouraging this,i'm just saying that this is all already happening.