Played and beat XBLA version and loved it. wondering if psn has new content at all.

Im pretty sure it's the same as the xbla version

I hope not, I love Limbo and don't wanna miss anything about it. Pretty sure it'll be exactly the same as the 360 version thou.

It does, but probably not worth playing just for it.

It's a room that opens after you find every egg, at the place where you get the "Alone in The Dark" achievement/trophy. There is also a hidden trophy to find it. Don't know what you'll find in the room, though.

It's basically a challenge room. You have to navigate large sections in the dark using only sound to dodge traps from the game (turrets, saws, worm/worm eaters. I'm almost done with it and its not anything breathtaking.