Just a comment on the new beta, first impressions very slick. Smooth and rapid transitions.
I find the shader window a little odd, the file/function options down the left take up too much of the screen in portrait mode, not too bad in landscape.the icons and text are too large. I have mentioned before about collapsing the sections on the ‘parameter window’ to the left in the case of the Shader window perhaps a button bar on the top with drop downs for option should be a better approach - it would give more real estate to test the shaders.
One other note - the old screen issue shown on screen rotation is still there but I found it was absent on my old iPad at lower res. Could the issue be an error with the screen WIDTH used during the rotation code ?