BlueAlien.org

According to MaxConsole:

"It has been confirmed that BioShock will be sold through every store right now that has stock. Toys 'R Us in the USA sparked the frenzy by running a commericial which said Bioshock was 'available now'. However, there still remains some confusion on the matter so you may not be able to get your hands on a copy right away until things have been fully cleared up."