I’d like a phone with no camera facing me, and physical hardware switches to completely disable the mic, camera, battery, and entire modem. Not some software interrupt and lock. I mean, the switch is circuit ground for these circuit blocks. When I select OFF, it means real world “this thing does not exist any more ever” until I turn it back on.
It would be interesting to have a modular rear camera with a removable lens, removable IR filter, along with public documentation and the full API for the sensor. This would open up an enormous range of applications. I would mostly mess with astrophotography more.