Does load and work on tablet/mobile.
Brush seems to default to a dotted line appearance for some reason.
Lowest pen size is still pretty big for the given canvas size.
Trash can is somewhat uncooperative.
It is possible to draw outside the intended canvas.
Eraser is good.
Canvas should take up more of the space, User interface should be smaller and more compact.
Not a bad start, could be a neat little tool with a few tweaks.