So Zuckerburg et al have reiterated again and again that they are a platform, that their strategy is horizontal, that they want to be tethered to no specific de

So Zuckerburg et al have reiterated again and again that they are a platform, that their strategy is horizontal, that they want to be tethered to no specific device or service. At least we can sleep soundly knowing the company managing everyone's personal data is an honest one...?