PSX Extreme is reporting on a rumor that was circling the internet last week that SCEE President David Reeves let slip a hint that Mirror's Edge would be a timed exclusive to the PS3. EA has come out and fully denied the rumor;
"according to the PR manager for the game, Peter Nguyen, the potentially innovative title will ship "this winter on PS3, X360, and PC." He goes on to say that "Mirror's Edge will not be a timed exclusive for PS3." Can't get any clearer than that, folks."
So 360 owners fear not, you will be able to go running with Faith at the same time as your PS3 brethren.