It could only ever be good for some interactions, e.g. it would be terrible for when the screen is just three large buttons for super quick access. Mode switchi

It could only ever be good for some interactions, e.g. it would be terrible for when the screen is just three large buttons for super quick access. Mode switching would surely be awkward. I think I remember some map apps experimenting in that direction, but I consider the locusmaps "magnifying glass" undisputed king of that hill (touch interaction for maps).