BioShock Sells Over 2 Million Copies

1Up is reporting that 2K Games' BioShock has now sold over two million copies across both the Xbox 360 and PC platforms.
Take-Two Interactive must be pretty happy. They were forced to delay Grand Theft Auto IV out of 2007, but the surprise success of 2K Games' BioShock (2K is a division of Take-Two) means they found themselves with an awful nice band-aid. In announcing their financial results for the fourth quarter, Take-Two confirmed BioShock has now sold over two million copies worldwide across Xbox 360 and PC.

Thanks to those previous job listings on Gamasutra, we also know that a BioShock sequel is in development at the newly formed 2K Marin studio.