Alright will do. I'm hoping they'll add support for MAME, old PC/DOS games as well. There's something nifty have about achievements for retro games.
Wonder if they can pull off the crazy ones and give them funny names for the achievement , that would be worth playing through them again for.
THE BEST METHOD to run PSX games (and everything else for that matter) is via Retroarch - http://buildbot.libretro.com/nightly/
If you have any questions on how to set it up on Windows please feel free to ask, its very easy.