There is a new ESP32 device, this time made by Odroid, and it's a handheld game console, but much bigger than the Pocket Sprite:
https://wiki.odroid.com/odroid_go/odroid_go
It looks like the version of my "stage" game library that I ported for M5Stack should work on this without any modifications (but without sound, sadly). I'm really excited to see how this one goes.