Marci87: The thing is I'm not quiet sure if it's EU only or not. It doesn't stays it anywhere but:
I have this:
http://store.steampowered.com/sub/45854/ - and it's viewable only in EU
Non-EU can buy this:
http://store.steampowered.com/sub/41074/ - and it's not viewable in my country
So I figure my copy is EU only most probably but I can still trade the gift to an US account so it's not yet locked. I'm really confused :D
Azrael360: If you have region-locked games in your Steam Inventory and if you go there, you will see them with a warning in red that says that can only be traded or gifted to others from certain countries (and the message is followed with a list of countries allowed for that). A Steam Store page that can't be loaded from other coutries doesn't mean they can't be traded or gifted for users in such countries (one example is Dragon Age: Origins - Ultimate Edition).
There's a way to see those pages from region-locked countries by just adding at the end of the store links this: "?cc=us", (the last letters are for any country where the game can be purchased). This allow you to see such pages, but not to purchase them (you get an error with the currency). As for your link, I used "?cc=gb", like this:
http://store.steampowered.com/sub/45854?cc=gb But all I see is the page to add and confirm the purchase of The Witcher 3, so that's a little weird (:P). Maybe someone else can explain more of this, but I want to add, many thanks for trying and thinking in the group with an impressive title like this one! ^_^
EDIT: I didn't notice the "sub" in the link, so the link is correct. It's supposed to be the cart and purchase page... Sorry, I need some heavy sleep rght now... (-_-)
I think it's prepared to be region locked but is not at the moment. That's what I figured searching the net about it. So I'll put it up for everybody and hope thwy won't lock it before the giveavawy ended. 4 days and because it's such a great title it will be contributor $50+