Samuel Axon, Ars Technica, does a good job laying out both sides of this long-simmering argument. Why Apple should, why they likely won’t ever again release a 4″ iPhone.
Jim and I discussed this on last week’s Dalrymple Report. The new iPhone SE tells the tale, I think.
I think it boils down to this: I believe people who would prefer a smaller iPhone are still buying an iPhone. They are not moving to another platform. From a sales perspective, there’s no incentive for Apple to make a smaller phone. This ship has sailed.