Perhaps responding to October's slightly disappointing (for us fans, at least) sales of Dead Space, EA will be releasing a demo for the game to Xbox Live tomorrow. The release says that the PSN version will arrive on the same day, but a non-Thursday demo release seems a little off to us, so who knows? [Update: Thanksgiving!]
Though we usually strive for impartiality, we'd encourage you to play the Dead Space demo, then go buy it, along with Mirror's Edge, as part of a "Give EA An Excuse To Make Sequels" two-pack. Please. We need this.