In one of the latest incarnations of Photos on the dev preview, the option to delete photos after importing has been hidden in a "gear" menu on the left of the window.
Is anyone else puzzled by this? IMO it's a pain if you forget to delete after importing, to then go and manually delete all the photos off a camera or phone. On a camera it's easier because you can format the card, but on iOS there's no one-touch option, AFAIK.
Why would Apple hide this in this way? Presumably it's a done-deal choice. I know I could leave feedback, but what's the point? Is there a specific place to leave design/UE feedback for this sort of beta? (I know plenty of actual problems, but still…) I'm posting this in part as an avenue there.