I was surprised to see not much was lost in the port from PC; mostly just resolution and frame rates.
It really just says that there is currently no excuse for any shoddy PC ports of games on the PS3 hardware. If they are released, it simply meant the developers did not have the time or resources to do a proper port. Basically, the hardware excuse just left the building.
Even though I never finished the game (never got into the story), the PS3 demo did have me reinstalling the game on the PC hooked up to my HDTV so I could do a comparison on the same display. At 1280x720, it's not much of a gap although the PC version will run much smoother depending on your hardware.
On a related note, Steam is currently selling ME2 during their holiday sales promotion for a mere $9.99, making a $59.99 MSRP a little bit harder to accept, but it's good for those who really wanted to play this game and were unable to play it on PC or Xbox.
