Having a secondary display that was context-sensitive (thanks Better Touch Tool) was super cool.
My point was that power user hackers will find interesting ways to use interfaces and controls. I’m not really interested in the people who tell me it’s useless for them or don’t need it, that’s fine, but I do want to see stuff that isn’t immediately understood or with a predefined purpose, just because it’s cool.
I wouldn't mind a "physical" touch scroll bar on the right side of my keyboard, controlling vertical scrolling on the screen with more accuracy, less swiping.
If the tops of the pixels can roll, it could actually have a physical "thumb" button that you slide up and down. I.e. pixels going up and down to "move" the thumb. The rolling making it feel smooth and frictionless when you "move" it.
Games and other tools could create some. awesome interfaces. Swipe down to get your keyboard sliding back.
Keen to see more of these PopTouch buttons on flat screens!