http://www.gamercenteronline.net/2009/03/20/bioshock-2-will-have-a-simultaneous-release/ Some good news for PS3.
That's shocking. I was halfway expecting to hear that it would be ported to PS3 a year later all the while Sony executives would be insisting that it will not affect sales and will move consoles. This should ensure that the PS3 version will sell a bit better than the Bioshock port did. This reminds me that I need to rent and play through Bioshock before this sequel is released.