That is a sad news. What a trip down memory lane though... I remember since I discovered that TI-83 is much more powerful than simply running BASIC programs, I'

That is a sad news. What a trip down memory lane though... I remember since I discovered that TI-83 is much more powerful than simply running BASIC programs, I've been spending most of my free time on TICALC. I remember installing a gameboy emulator that used some neat tricks to make TI-83's monochrome display render 4-shade greyscale. I think there was a Doom port. There's been a way to load and play rudimentary music through the IO port. TICALC was/is a treasure. I wrote and published a simple sprite and asm editor which since has been deleted. I had a z80 opcode table pretty much memorized so I can try writing small native programs in hex directly on the calculator. I think it helped me pave my life path for the next 20 years.