However, I can’t say I agree with his proposed solution (and it seems many of the commenters on his post have the same issue with it that I do). The camera model, for me at least, doesn’t really work because I actually find the autofocus button on modern camera’s to be mentally taxing. I seem to find myself hovering on the press of the button, hoping I don’t accidentally press too hard and spend more thought in the actual action of dealing with the machine rather than focused on the shot I’m using the machine to capture.
The other aspect I dislike about this model is that it requires a hardware change for something I think can be a software change.
There seem to be 2 issues that are mentioned in his post:
1. users accidentally pressing home to jump to the application home
2. an easier way navigate backwards and forward in our navigation timeline
Rather than overloading the Home button (which is already used for multiple purposes, such as going to the home screen of the phone, jumping to spotlight, …