Interestingly enough, Michael Pachter brought up an interesting point when he stated that EA didn't drop $300M on BioWare and Pandemic only to let them keep working on Xbox 360 titles. No, Pachter claims that EA very likely intends on bringing Mass Effect onto the PlayStation 3, with either a sequel, the original, or both.
N'Gai Croal then points out Epic, who is very familiar with the PlayStation 3 architecture, and goes on to state "we pretty much know that Gears of War 3 is probably gonna' come out on PS3." Yes, GOW3, and not the sequel; Microsoft holds Epic to a two-game deal, so the first two will likely remain exclusive, but Gears of War is the intellectual property of Epic Games.