Okay so I can't seem to get a straight answer on this.
I have 2 Pre-order codes from Gamestop to use for the PS3.
The website to register for early access is asking for a 20-digit code (apparently this is the PC version only.)
My assumption based on everything I'm seeing is that we need to type the 18 digit codes for PS3 into the XMB under Redeem Codes.
Anyone at home still (I'm at work) that can verify this for us please?