According to magazines on both sides of the Atlantic, 2K games highly lauded Xbox 360 console exclusive is no more... well, it's no longer exclusive. Both
EGM in the States and
PSM have apparently confirmed the port.
Take 2 is not commenting right now on the (lack of) information - one piece of which is, according to 1UP, that the game will be ready in time for Christmas this year; that's ahead of the proposed release of Bioshock 2 (still, we imagine an Xbox exclusive) which is due in 2009.
Sources:
1Up
CVG