I agree on some products, but not at iPhone scale. They do pilot runs months in advance to shake out issues. When you sell several million in the first releas

I agree on some products, but not at iPhone scale. They do pilot runs months in advance to shake out issues. When you sell several million in the first release weekend you have to build stock and fill the channel. They may choose not to enable something in software, but I really doubt they are making HW changes. Last minute HW changes lead to big failure rates, which is just too costly in terms of reputation and cost.