Oh yeah, there was another big tech expo this past week: Macworld. And the magazine is reporting Bioshock will be out for the Mac in the first half of 2009.
At online retailer Feral Interactive's booth, exhibitors wore shirts with Bioshock's Big Daddy on the back. Writer Chris Holt checked with Feral reps, who confirmed for him that the game's coming.
Still calling this a rumor as it's Feral talking and not 2K, but
Corrections: Feral Interactive is actually a Mac porting shop and publishing house. It buys rights to port PC games from publishers like 2K and Eidos, then programs them to run natively in Mac OS. So this wouldn't be anything 2K would comment about. Again, this is Macworld reporting from its own expo. So, Mac gamers, enjoy, sounds like Bioshock is in the pipe.
Feral's Big Secret {Macworld, thanks Luc]