On top of that, all these ARM Cortex based boards have a closed hypervisior on them. It's pretty silly to run this as a router when you have no idea what's running in the hypervisior. I haven't been able to find any information on what it's actually running except some sources say that it might be running a port of Xen for ARM.
Using them to program your robot plant-watering robot is fine but using it for any kind of internet connected device more complicated than that is probably a bad idea.
I was unaware of a a hypervisor sitting on the ARM Cortex. Do you have any links to additional information? (I've been using the RPi to prototype a product for the service industry (Cheap linux box with exposed gpio), and while I don't intend to use them in prod, I'm curious of the potential implications for my beta users.
"In practice, since the specific implementation details of TrustZone are proprietary and have not been publicly disclosed for review, it is unclear what level of assurance is provided for a given threat model."
"In practice, since the specific implementation details of TrustZone are proprietary and have not been publicly disclosed for review, it is unclear what level of assurance is provided for a given threat model."
Using them to program your robot plant-watering robot is fine but using it for any kind of internet connected device more complicated than that is probably a bad idea.