The difference, however, is that Epic Games has already released many linux clients for the Unreal series.
Huh? The PS3 version has been out since early December. There have been many games in the past with "Linux version to be available" that never see the light of day. They next to never put out a release what will say "We said we would put a client out, but we changed our minds." Almost in every single case where a linux client was pulled or killed there hasn't been a press release saying so. They just let people yell until they go away.