Yep, I could totally see them enabling this only on Pro-level iPhones, for example. This would presumably be because Pro devices could have different chips that

Yep, I could totally see them enabling this only on Pro-level iPhones, for example. This would presumably be because Pro devices could have different chips that are designed to handle these specific tasks, as well as having larger batteries. I expect there will be a lot of iPhone upgrades this fall, as buyers will finally see a difference between their 1-3 year old device and a new iPhone.