I think we're conflating a few different issues here. Smartphones are Powerful surveillance devices whether used for passports or not. I would like that to be

I think we're conflating a few different issues here. Smartphones are Powerful surveillance devices whether used for passports or not. I would like that to be more regulated (or regulated at all in fact). But that isn't what's under discussion. And since a (paper) passport already involves being tracked as you cross a border having a passport on your phone adds no extra privacy breaches. Similarly I am subject to warrantless, suspicionless search at all border crossings already (including my phone). So using a phone for my passport costs me nothing here either. I don't object to general wariness about surveillance, in fact I encourage it. But this is not a form of additional surveillance... To me it seems people are just hiding behind catch phrases like "elitism" because they don't like the idea but have not actually bothered to consider it (not you, but other replies here).