We got the game days before the disaster in Japan, which caused both the European and North American versions to be delayed. The game is now available in Europe, but Americans still have a few weeks to wait. At least the game now has an official date though, as Sony's confirmed that May 3rd is the day you'll need to mark on your calendars.
To make up for the wait, SCEA's throwing in a Premium Pack DLC voucher — which includes two new vehicles — alongside "all new copies of the game". In case you were wondering: the game is friggin' amazing.