Bought it earlier today. Finished the pimping missions and just been going around getting guns. I'll be ready when I start the story missions. Had no clue this was coming out on psn until this afternoon. Great surprise.

Well I've only had  one preorder online and that was arkham city from Walmart. It came a day early so I know that's not the norm, but from what I've seen you should get the game on release date.  preordered a few times and have always gotten the bonuses promised. if  you order online I think they email the bonus codes to you, which can take up to two days. When you pick up from gamestop the codes are on the receipt.   

My bad missed the last question. Yes you can get it the day of release as soon as store opens. Some game stops do a midnight release as well.

http://www.gamestop.com/ps3/games/borderlands-2/92827 here's the link. No don't work for gamestop but live about two minutes away and get most my games from there. I purchased dead island GOTY edition at best buy for 20 bucks cause it was thirty at GameStop and Walmart. So I just go where the deals and convenience are.

Meant looking forward to Tuesday but every time I try to edit post it says post is censored, weird. 

Consumers who pre-order from GameStop (US), EB Games (AU/NZ) or GAME (UK) will also receive access to the Creature Slaughter Dome. Consumers can also submit their idea for the name of a gun to be included in a future add-on content pack on GameStop's Facebook Page Name This Gun!

Found this on the borderlands 2 wiki page for any who were wondering about info on the creatureslaughter dome. Really looking forwto tho Tuesday.

I'm looking at borderlands 2 on gamestop and  it mentions the creature slaughter dome right below the other bonuses