This may not be what you mean, but there are a couple of modern devices that function pretty much the same way, just with faster CPUs and better graphics:
https://geoffg.net/maximite.html
https://www.olimex.com/Products/Duino/Duinomite/DUINOMITE-MI... (a cheaper knock-off of the above)
Similar, but doesn't boot to basic, and requires more skill to deal with. Cheap though...
https://www.tindie.com/products/lilygo/lilygo-ttgo-vga-v14-c...
It's basically a ready-to-run platform for the awesome fabgl library: http://www.fabglib.org/
This may not be what you mean, but there are a couple of modern devices that function pretty much the same way, just with faster CPUs and better graphics:
https://geoffg.net/maximite.html
https://www.olimex.com/Products/Duino/Duinomite/DUINOMITE-MI... (a cheaper knock-off of the above)
Similar, but doesn't boot to basic, and requires more skill to deal with. Cheap though...
https://www.tindie.com/products/lilygo/lilygo-ttgo-vga-v14-c...
It's basically a ready-to-run platform for the awesome fabgl library: http://www.fabglib.org/