Maybe it can be done beyond the niche. My current guess would be no but I’m not super sure about that. Admittedly, do not expect any great insights from me in this regard, all I’m going on is that drawing (with a stylus) has been a (pretty big) niche application in computing for a very long time now and always nothing more. It’s useful for some people, but very far from everyone. Maybe that can change. Actually, I don’t really doubt that (look at all the previously niche-tech that’s in current smartphones because it became cheap enough and that had to find its mass-market applications first, stuff like gyroscopes) but I’m not sure whether it’s the Surface Pro that will do it.

But it has, admittedly, a better shot at doing it than anything else that came before it.