Well, I guess this kind of device + LoRa communication or some other sort of mesh network could be quite practical while still being unreasonably safe.

I was thinking the same thing. this is a much better platform for a lora-oriented secure comms platform than a throwaway android device or even many of the other SoCs I've been looking at. I appreciate the integrated keyboard and screen a lot as it removes the need to like, run full android or linux. if they publish full hardware schematics (they kind of have to for verifiability), the price will come down naturally as you'll be able to fab your own.

so then that leaves a need for a secure comms app that can run over a lora mesh - something I'm actively working on. as this platform won't even ship its first version for a year, at which point I could begin development on it, I'm going to continue targeting android for the time being, but this is a great contender for a replacement once it's available.