I think the bezel would need to be tight enough to not bump easily, and then not be used for destructive input. If it was selection (maybe face selection by default) and got bumped, not a big deal. Or maybe a mix of both a physical bezel with a capacitive function to determine if a finger is causing the rotation? (I do love the tactile click when I rotate mine.)
The concept does require OS-level support though, to get value out of it. Given that Apple didn't do it, I have a hard time seeing it coming out any time soon.
Agreed, the satisfying click of the bezel rotation would be a painful loss.
However, the later-model iPods had a pretty satisfactory capacitive wheel with 4 selection inputs on each directional. The capacitive nature inhibits accidental inputs... maybe not all, but most.
The Nest UI is also wonderful with it's rotation and selection method.
Honestly it would be very interesting to see something like a movable bezel be utilized on a watch... I would definitely like to see it be explored.
The concept does require OS-level support though, to get value out of it. Given that Apple didn't do it, I have a hard time seeing it coming out any time soon.
Too bad. I wanted my smart Rolex GMT.