I'm all for the customization of the UI. Everybody has their own tastes and we should be able to tweak the UI freely, imo.

And as long as they open up key mapping, I dont care what else they do to the controls, just let me control what button does it.

I would like to use the buttons on the side of my mouse for common functions as well as middle buttons. I have a very expensive gaming mouse that is useless in this game. And there is no substitute for the turn speed and freedom of a mouse, imo.