this post resembles me almost exactly. I played the demo and little big planet today, and holy shit, they really make me want to get a PS3
mirror's edge is great in that you really only need jump and duck for the majority of of the demo. It's like a sucessful 3D sonic game
little big planet is AMAZING with 4 other people. we all loved racing each other and making eachother disappear. then when the map stops for some dialog, we all smack each other with the arm controls