Seems highly insane that students have to buy a calculator, that can basically never be used outside of school for many people because it's so limited....
Why can't the school just have a pile of them? Then they can be totally FOSS. The teacher hands you one, they know the FW is good, you give it back, and if you want to practice at home, you can buy yourself the unlocked version which would be fully open and have more communications so it could be repurposed.
Then the same device can be sold as a smarthome IoT remote like a better Logitech Harmony, or various other random uses, and have more economies of scale.
In fact, it could just be a cheap Android device sans GPS, with no front camera(A cheap rear camera is always good for QR setup) and with real buttons and a smaller screen.
Lower resolution + transflective display + 30hz + fewer background apps is going to significantly increase battery life.
Then people can try out the CAS features on their phone, and use their calculator for whatever they might want, since it's become the obvious choice for IoT stuff.
