Well PS3 owners have been demanding them and it looks like Rockstar heard your demands. I am of course talking about the PS3 trophies, it does look like the PS3 version of GTA 4 will be getting trophies. There are of course far too many trophies to list here but if you click HERE you can read all about them. There is no information on when these will be available though.

Link: ps3trophies - Trophy Details