(currently) I have zero interest in a folding iPhone, but I would love to see iPhone mirroring in AVP, leveraging Optic ID from the AVP to "unlock" a mirrored view of the iPhone inside the AVP. That mirrored view could be superimposed on top of the pass-though real iPhone but at sharper resolution if one wants to "touch" buttons on the mirrored phone view.
If I need to use OKTA/TruU from my iPhone (which is relying on faceID to authenticate), it would be nice that I don't have to take my AVP off my face to provide the iPhone a clear view of my face. Just like the Mac Virtual display, the iPhone display could remain dark, but the rendered iPhone image would be viewable inside the AVP and security would be authenticated by Optic ID