i am now up to 8 keys.
by the looks of this page there will be 10 keys going out from friday to sat night. http://orcz.com/Borderlands_2:_Golden_Key
pc/mac : WTW3B-BB3SK-WXBJJ-3BB3J-ZSXKX
PC / Mac SHiFT Code: 5TW3B-HFH6W-W6BJB-TTJJB-BX3RS
Xbox 360 SHiFT Code: K3W33-5SX59-69R36-563T3-H6WTT
PlayStation 3 SHiFT Code: CJ5BB-FT5HW-J5CWT-HBCB3-BC5XK
also found new spot to kill warrior. when you first come to center of map head to left side of map that center part of area. all way to back you find a tell porter that spawns your ammo. you have place where he can not hit you but you have to take out rock monsters too.