Just a reminder that Prey in the Darkness, the second challenge map in the Batman: Arkham Asylum set of free downloadable content, will arrive on PlayStation Network and Xbox Live tomorrow.
The map actually is live on the UK's Xbox Live servers as we speak, so if you're there and home from work/school, check it out now. Maybe it'll hit U.S. servers in the evening hours, too.
Update: This content is exclusive to the PS3 in North America and so it will not be coming to the 360 in the U.S. You may read more about it at Eidos' official forums or in the official news release.
More Batman Free DLC Today [Eurogamer]