I loved the original Dead Space, not only did it have a great horror atmosphere, but the zero gravity scenes were really fun too.
I'm looking forward to the sequel and all it's scary make-you-jump-off-the-couch moments, and I'm eager to see to what extent Isaac's mental condition has deteriorated due to the traumatic events he went through.
I also wasn't aware that the game would have multiplayer, all I can hope for is Zero-Gravity Shootouts. It'll be like The Matrix with people jumping towards each other firing plasma cutters.