Bohemia's shown of some new screens of go-anywhere-do-anything war sim ArmA 2, and it's looking pretty hot. They're on GamersHell. As far as we can see this doesn't have a release date at all at the moment. Bohemia was the original developer of Codemasters' Operation Flashpoint, the sequel to which was brought in house at the publisher and is expected later this year.
More on this soon, hopefully.