Microsoft finalizing Bioshock 2 exclusive deal with Take-Two?

GB:

"Bioshock was hailed as the game of the year by many critics back in 2007. The game definitely earned that title as it mixed various genres while providing an engrossing and original story. There is still some question as to if Bioshock 2, the sequel, will be a timed Xbox 360 exclusive like the original or if it will be a day 1 multiplatform title."