Why should you care? Most of our users have already purchased the machine Products should be "suitable" for the intented purpose There is a gap in the enforcement of this principle Most other industries are required to provide "repair information" (see recent rulings about car repair manuals) Without documentation, developers often make mistakes writing drivers Even in the worst case: Attempts (and partial successes) at making any operating system run on hardware puts pressure on commercial software vendors (Microsoft) to not screw the customer as much.