Yet another sign that the mobile market belongs to Android and Apple. Amazon is writing down its inventory of the Fire phone. It doesn't make sense for anyone else to compete at this point. Even mighty Microsoft is struggling to gain decent market share. The lesson for Amazon? Stick to your knitting. You are not a mobile phone company. You are an incredible digital media company, however. Kindle + digital content = success. Fire phone = not so much. Memo to Jeff Bezos: You are not fu**ing Steve Jobs. They broke the mold after he passed away.