I've been following this man for years. He's knowledgeable about a wide range of software and hardware and still does. Are you suggesting he's created his own alternatives to all of these? I've never heard him criticize open-source systems unless they have legitimate flaws, like Linux phones. He's often mentioned various AOSP alternatives, not just the one he sells. And speaking of that, anyone could theoretically do what he's done with his Android system and phones, which is why I've never felt the need to buy it.