The additive part on the iPhone was:

1. A screen that covers the whole device.

2. A device that doesn’t suck for touch.

The loss of the physical keyboard was indeed actually a loss, but was offset by meaningful improvements.

My problem with most of these proposed devices is that they are purely subtractive. I can run ChatGPT or Claude or whatever on my phone right now. Where is the part where a new type of device delivers some new experience or capability?