There's "one" feature I'd find particularly useful.
You mention removing scrollbars and adding the hand tool - I'd like to be able to customise the buttons on the toolbar so we can have our own combination and order of items. I'd like to be able to add save button, and I don't use the highlight tool much at the moment, so I could remove that to save space.
I also use the zoom - fit to page width option a lot, and never use the "Normal Size" 1:1 view which means having to go through the menus.

Is the hildonised code available on the Garage? I'd love to have a look at some point.