This is not the question. If i pledge money to a game, I can not expect anything in return. I make an investment. I don`t have any sort of entitled claim against, in this case, Obsidian Entertainment.
If I make a pre-order, I DO have a claim: If they don`t ship the game, I can sue them for breach of contract.
So, what is. They call it: "Pledge", but, at the same time, promise me a reward. This is best of borth worlds, for them. I am in the EU, and maybe it is an EU-thing, but this sounds as some sort of "Oh sorry, we failed to deliever the game, but since you´ve PLEDGED and not PRE-ordered the game, we don`t owe you any money".
I don´t want to sound rude or greedy or something, and I don`t really think that Obsidian would screw us, but as EU-citizen I am highly scepitical about that sorts of mixed advertisements.