Cook said that demand for the iPhone 17 models is "off the chart." Traffic in stores is up significantly, and Cook said that consumer reception is "very strong." Apple set a September quarter record for upgraders.
iPhone supply was constrained during the quarter, and several iPhone 17 models are still constrained. Cook said Apple is working hard to fulfill all the orders that it has.
And this why Apple doesn't need to rush to release an folding phone. I'm sure they are working on one and when the tech is there they will release it.