My take is quite different. Every device that I use to do internet banking or things of that nature, I'm very happy to delegate security to companies, and consi

My take is quite different. Every device that I use to do internet banking or things of that nature, I'm very happy to delegate security to companies, and consider that already I trust said bank with my finances. If I want a device I "fully control", then I don't expect a bank to trust it, I don't expect to do internet banking on it or other sensitive stuff of that nature. And that's the status quo even with Google implementing this, open-source OSes still exist, just don't expect internet banking to happen on them.