The iPhone Duo comes out tomorrow but, given the pre-order demand, it is looking to be a smash hit. And we are all expecting Apple to follow up with a second-generation model next fall, which means the company is already working on the next-gen hardware.
On his Power On podcast, Mark Gurman reports that iPhone Duo 2 prototypes inside Apple include Face ID, with the Face ID sensor being integrated beneath the display on the outer screen.