Your hands won't be able to play Shank until this week's PSN Tuesday/XBLA Wednesday update goes live, but your ears will be able to listen to the entire game's soundtrack. Big Download has the 13-track OST available for download, without any messy DRM to worry about.
If that's not enough for you, your eyes will be able to watch the game's bloody launch trailer. Be warned, though. If you get queasy from violence, your stomach might also partake in the festivities.