Its been released and there is a demo on the web site. Its interesting, still undecided. Theres a lot of going over log files and trying to piece together what was actually going on on the ship, which is hard to get into because you're just sort of thrown into the deep end of it. The demo is hard to get a feel for since it ends basically right after you solve the only puzzle up to that point without showing you the consequences. I suppose that was meant to push you to buy the game to find out what happens next, but you don't even really know what you did.
I'd be tempted to buy the full game on a sale, just because its kind of an interesting setup.