Regarding the strange derpage today, where Deep Silver seem to have somehow released the dev version of Dead Island to US Steam users, we've had a statement back. It's succinct:
"the final version will be out during the day"
Which would seem to be both a tacit acknowledgement that something that wasn't the final version was released, and also the good news that the error should be fixed before bedtime. So that's good. Our review of Dead Island will appear just as soon as I've finished writing it.