The multiplayer demo for Uncharted 2: Among Thieves will be released to the public around September 30, with those that pre-order Naughty Dog's action-adventure sequel from GameStop getting early access to the demo on September 9. According to the report, the multiplayer demo will no longer be playable after the game launches in October.
Several other pre-order bonuses were also announced, with Best Buy offering exclusive golden weapons for multiplayer, Amazon.com getting an exclusive in-game treasure map, and Game Crazy netting a currency multiplier to "to gain in-game currency and unlock bonuses faster...for a limited period." Meanwhile, those that pre-order from GameStop will also be able to immediately unlock the "Revenge Attribute" instead of earning it.
For a better look at the game, check out this snippet of single-player footage from E3: BOOM video 2111