US Publishers don't like picking up lesser known European games...Sad I know.
Indeed, it is sad.

However, there's always Deep Silver and SouthPeak. I don't like the latter publisher - they're cons.
Oh, and PS: Larian, if it is becoming hard to find a North American publisher, please think about making future Xbox 360 releases region-free. Your North American fans will import and get you more money in your pockets.