they kinda do already, and so does microsoft (application signing?), you can just opt out of it, and that&#x27;s the key exception.<p>also, a general purpose computer is exceedingly different from a cell phone and they have notoriously bad security models.<p>Like I said, my phone runs my life, I don&#x27;t have a reasonable means to keep it secure (not even on android), a PC, I can attach debuggers to processes and I can lock down my firewall, or I can sniff my network. - I can do none of this on a phone platform reasonably well (AF+ firewall on android requires jailbreak and breaks applications). and I shouldn&#x27;t have to..<p>to put it bluntly; I can be responsible for my laptop, I can&#x27;t be responsible for my phone.