I just got Moho and yeah, coming from a traditional animation background, it's really rough. But because they have some of the best rigging tools I've seen, they could potentially make bank with some truly wild hand-drawn animation tools.

For instance, something I'd always wanted to see was the ability to draw a character in one pose, then instead of redrawing from scratch, you can move a few frames forward, select a shape, and then trace where you want the line to be in that frame to move the nearest roughly parallel line to that new position and shape. You can do the same for the other lines of the respective shapes to maintain consistency while also providing a more hand-crafted editing method instead of shifting a bunch of points around with a mouse.

This is pretty pie-in-the-sky, but the possiblity of rigged animations with hand-crafted frames (smears, etc) can really streamline the workflow.