CAL4M1TY on 06 October 2008
Yeah it's not happening, Gears will basically never come to the PS3 (at least this trilogy, later games set in that world, who knows), but in the event that Gears 3 somehow makes an appearance on the PS3, then the exclusivity agreement between MS and Epic would ensure 1 and 2 don't make it there.
I'm pretty sure that exclusivity deal covers 3 games (i.e trilogy) so they'd all fall under that umbrella.
