It also happens to be developed by a semi-third party developer. The Gears Of War franchise is bound by an exclusivity agreement, something analyst Michael Pachter reckons Epic regret.
“I think the Epic guys can’t wait until they can start doing multiplatform games,” Pachter said on Geoff Keighley's Bonus Round.

“I think that Microsoft has a contract to make sure that they get that sequel, but I think Epic regrets signing that contract. You’re up to 11 million PS3 in the US and probably a similar number in Europe, and you’ve got a 20 million addressable market with a game like Gears of War.

“I mean, that thing would easily sell 3 or 4 million on the PS3 and that’s a lot of profit.”</blockquote>

Pachter went on to state that it just doesn't make sense to do single platform development anymore.