Update: in very late testing.
I hope to have the app update submitted to Apple next week. In the mean time, here are some screenshots of the current release candidate.
I guess the big news is the interface is much more normal looking. It has the standard keyboard and gestures built in and even a loupe. I have added a number of cool behind the scenes stuff like automatic text styling and equation alignment. TeX export is back as well. Also, the math rendering is much better.
I’ve still got some final polishing to do, but I’m happy with the result and hopefully you all will be as well.