My Nexus One met the pavement/concrete a few times (~3) without a case. The third caused a smashed screen. I don't doubt your story, but there are definitely an

My Nexus One met the pavement/concrete a few times (~3) without a case. The third caused a smashed screen. I don't doubt your story, but there are definitely angles that are better for the phone to land than others. The Otterbox kept it safe after that.