Uncharted 2: Among Thieves will be out in North America on October 13, according to a statement given to Kotaku by Sony. The box art has also been revealed, featuring Nathan Drake hanging precariously from a ledge, looking with disgust at the game's title. You can see the full box after the break.
In addition, Sony revealed four different exclusive digital pre-order bonuses for different retailers. Best Buy gets golden guns for multiplayer, Amazon gets a Treasure Map item that "allows players to discover hidden treasures throughout the game," and Game Crazy gets a currency multiplier item that unlocks currency in multiplayer games more quickly for a limited time.
GameStop's pre-order bonus is the big one: early access to the multiplayer demo (as well as access to the "Revenge" booster). The multiplayer demo opens on September 30 for everyone else, but GameStop customers will be able to get in on September 9.