We may shed the need for accurate targets, but I would imagine there would be atleast a need for feedback that is not demonstrated in the 'vision.' But that lea

We may shed the need for accurate targets, but I would imagine there would be atleast a need for feedback that is not demonstrated in the 'vision.' But that leads to your second point. There's been anecdotal evidence that young children can just figure these interfaces out and I'm wondering if it's true that the confidence may come from learning and built up trust. I'm doubtful that the built up trust can account for 100% of the confidence. Touch based interfaces are largely form-less designs. There are an infinite amount of affordances offered by a touch screen. As it stands now, all of these affordances are defined by the visual appearance and lack the 'resolution' so to speak, that a physical form can provide.