I'm curious, do you (or anyone else) even have an interest in creating diagrams on mobile? It's never crossed my mind as a conducive platform for creating diagram because of the small screen size. I've thought about viewing diagrams in mobile, but again I'm unsure of the desire from other people to do so.
(It isn't too hard to get this working as a viewing platform for mobile)
Same and diagramming seems like something that a tablet touch interface should be good at. I just use the omnigraffle app though so it’s unlikely I’d bother with a webapp tool.
Not really, and I don't really see how that would work on a touch interface. I've seen countless attempts at making tablets (and phones) useful for more than looking at cat pics and watching cat videos and they've all sucked.
But being able to at least easily view diagrams on mobile may be useful, I guess? I'm not sure if it's supported right now.