Thanks for the update on the MAME 1.1, Slaneesh.
In the big scheme of things an improved MAME emu for native Dingoo is the best priority
The Dingoo screen is very crisp, actually, and I prefer that screen to the Caanoo screen, which is bigger but less sharp.
Some of the MAME games look very nice indeed on Dingoo. (It is just that rotation issue that puts me off the Dingoo, sometimes as if I touch it it can crash if I re-orientate the screen back again. I do like my vertical orientation, when I can get it.)
Thanks to Slaneesh for trying. This Emu scene respects people like you and you have an impact upon many users.