These things are fantastic. A lot of great work comes from dealing with difficult constraints, like a single line display.
I had the very similar Casio FX-730P and spent most of my lessons at secondary school not concentrating on the topics but coding new games and apps all day:
All those kinds of Casio models were cherished in Portuguese engineering universities, they were the models to own.
We did not had any big TI or HP followers, back when I was doing my degree.
I still have my Casio FX-880 P in working condition, and the little cousin I used on high school as well, the FX-4500 P.
I had the TI-74 back in the day. Besides Basic, there was a cartridge that let you program in Pascal as well. It was interpreted, and no faster than Basic, but it was fun and let people learn Pascal, which was a useful skill in the 1980s.
Very informative write up!
Though at the end I was left wondering if it can run more traditional line oriented programs though the usb2ppp interface, something like "ed" (perhaps ex or vi -e) or "edbrowse". I think those programs will be well suited for the physical user interface of this device.