More than two years in and I have yet to find anyone who thinks this is a good idea. Time waster not a time saver; decreases efficiency and removes one-touch access to critical functions like volume and brightness control. Hidden sliders? Really? Look down, locate, touch to expand, locate the slider widget, then move it? Bonkers. Too closed. It wouldn't be so bad if Apple allowed sets that would be activated by a physical key. Example: fn-ctrl brings up my custom set of discrete buttons. Being limited to five global buttons on the right is ridiculous. Don't get me wrong, I'm all for the inevitable "keyless keyboard" with pressure sensitivity and haptic feedback but it's got to be "eyes free" as well.