I have managed to change resolutions in linux low quality version. Here are 800x640, 320x240, 640x480, 800x480 and 480x272.
800x600 is default resolution when you first start.
320x240 You can't see the menu or hud and you need to scroll a lot. Picture is not centred so your character can go out of the screen. Though not playable resolution is supported out of the box.
640x480. You can see the menu when you start, but font is too big and text is out of the screen. Still totally playable with change in font size.
800x480. Almost the same as 800x600. Text and the hood is visible and totally playable. (Yinlips and jxd s7100 owners will be so happy
480x272. Little better than 320x240 but still too big font and a lot of scrolling to see where are enemies.
Still there is no Android port for now, but I can see it in the near future
Edit: My conclusion is if it ever would be ported to Dingoo, it would have to be downscaled from 640x480 with font or Hud resize to be playable.