[jclardy]

You have a very optimistic outlook on corporate culture. Do you code review every piece of code that goes into a corporate project? I work at a relatively small company with three apps and 5 iOS devs, and I look at maybe 20% of things committed. If every dev looked at every line of code every other dev produced, 100 devs would get nothing done, ever.

The reality is this was probably a marketing initiative - "Can we tell what users are most interested in on the screen" and the answer is yes - on-device eye tracking is very simple to achieve using Apple's vision framework.