Hmm... Looks like it is broken in this b7 build; Can someone confirm this?
I went back on every scene done to check if it is all ok and I noticed there are weird bugs in this remade OnGUI() interface.
The main thing I see is the focus of controls seems bound to the mouse now, FocusControl() does nothing... Is it just me?
It totally ruined my menu controlled by joysticks/keyboards.
Note: Tested on Mac only. Not working.