It is _beta_. Don't use it for production work! I'm currently paying Sharaf who did the original port to work full-time on fixing Android/ChromeOS issues, but we're not even at the stage where we can think of implementing a tablet-friendly user interface again.
We just made it build, which needed a bit of hacking in Qt, and then some hacking in Krita, but it was doable within the scope of a Google Summer of Code. Of course, the devil is in the details, and that's what Sharaf is working on now.
