Can't see any mention of palm rejection and the image they show doesn't clearly show if his hand touches the screen or not while drawing. I'm curious how well the palm rejection problem is solved in these kind of apps? If not it would seem to be a pretty annoying problem.
Interesting info, thanks - I use an nVidia Shield tablet that comes with stylus and has palm rejection features that nVidia included dedicated support for their SoC. Unfortunately it does not work well enough for me and I end up not using the stylus very much. So it is interesting that it's possible (hopefully) to solve it better than that.