Falci: Since you're here, answer me a little question: Fallout is ungiftable during the promotion, right? I tried to add it to the cart, but it kept giving a generic error message.
I don't know, but I suspect so; gift codes don't expire for, like, a year or so. So you'd have a free game code after the game was no longer free. Databases weep for such things.
TheEnigmaticT: Once the Enhanced Edittion is out, we'll have a page up there where you put in your key and the game will be added to your account.
Adzeth: Will the guys who bought it on GOG be able to enter their keys just to satisfy their twisted desires of entering keys in places, or would that make the servers explode?
That causes a causality protection fault in the universe; whenever you do it, someone somewhere is forced to wear a porkpie hat on camera.
TheEnigmaticT: and the game will be added to your account.
Lexor: A question: what if I have both retail (= collector edition) and GOG digital version already? Retail key will be "useless" or there will be maybe some "premium" content?
I don't think the key will work for you for any particular thing, but you could certainly give the key to a friend to encourage 'em to sign up. ;)