Yeah, Bioshock is not a good example as it came out so much later and I wouldn't be surprised if a similar story is true for Dragon Age. If my memory serves me right then it was supposed to come out later, but suddenly god bumped up to come out at the same time, which means a lot of pre-ordering people had probably already got pre-ordered already for their PC or Xbox360.
Will be interesting to see if Move will change the landscape in terms of traditional multiplatform games as it will be an extra feature the PS3 version will have for many hardcore games, which the Xbox doesn't. R.U.S.E. being one example, but I am sure 3rd party shooters will follow Sony's lead too. (And before someone mentionns Kinect, while its nice for excercise games, lets all agree you will never run around in COD for example shooting by waving your arms)
