The bad thing with digital buttons is not being able to feel them under the thumb before pressing them, this makes the haptic feedback useless, because you still only feel it after the press.
So there's 4 buttons we won't have anymore, 8 if you include d-pads....or do we??
The scroll wheels give us 4 extra inputs though. Not only can you press the trigger you can roll it left and right now - 2 added inputs per trigger.
Also, the only times on screen buttons are useful is when you don't have to hit the screen in that perfect spot. Ie the entire right side of the screen is one input, the entire left side of the screen is an input. It would also be easy to make the screen a quadrant of inputs, bottom-left/right, top-left/right. You don't have to think of where you need to press too hard and it's easy to get back to the stick.
There's 8 inputs that we would be missing.
Not saying I love that idea but it could work. Also, I'm on #teamreal but this is only a concept that isn't the final product.
Also, those analog sticks have new tech that has been discussed on thread that I can't recall the name of. Where it's like foam pressed rather than a moving mechanism.
Great for handheld which I believe this a prototype of.