Things that interest me so far from the Apple event:

Aperture on iPhone Pro - Change the light allowed in the camera in low-light. Up to 1.8F. Amazing.

Apple Reference Image - See if an image was originally captured on iPhone.

Live activities on dynamic island now supports three activities. Actually a number of times I need this while traveling.

Live rewind on Apple Watch - Potential to rewind conversations for things I missed. I'm a little hard on hearing so this might help.

iPhone Duo!