Maybe I completely missed this in the beta builds but in the GM release if I delete photo(s) from my camera roll that have been uploaded to my Photo Stream they no longer display in the Photos tab (left-most tab). My understanding was that the Photos tab is supposed to be a time-based view of ALL photos on your phone (albums, camera roll, Photo Stream, etc..). Maybe I'm in the minority here but I like to sync my iPhone w/ iPhoto and delete my imported photos from the Camera Roll to keep things tidy. I've seen the Camera Roll get corrupted when you leave too many photos in there. I like the idea of using the Photos tab on iOS as a way to view my current Camera Roll plus the last 1000 photos in my Photo Stream but it doesn't seem to work like that any longer and I can't understand why Apple would want it to behave like this. I've tried deleting it from the Photos tab, Albums>Camera Roll, and also by using the delete prompt you receive after doing a photo import using iPhoto and each time the photo disappears from the Photo tab as soon as it's removed from the Camera Roll. * All references to the word 'Photo tab' above refer to the Moments/Collections/etc tab in the Photos app.