That’s right! Everyone with a Ps3 is invited to download the Killzone 3 Open beta on February 2nd. The beta only goes until the 14th so I’d grab it while it’s available. The beta includes all 3 multiplayer gameplay modes as well as an offline mode where you can face bots. The beta like the full game supports both Playstation Move, and Stereoscopic 3d.
Killzone 3 will be available for the Ps3 February 22nd.
To read more details about the open beta check out this post on the Playstation Blog.