I think I'm missing something obvious. I have about 1500 photos on my iPhone. I'd like to go through and delete many of them. They're all uploaded into iPhoto. Instead of doing this on the phone, I thought I could plug the phone into my computer, open iPhoto, click on the phone, and then batch select and delete photos. I can get up to the last point -- I can select the photos I want to delete from the phone, but when I right-click, I don't get any option to delete the selected photos. ETA: there is a button that says "Remove Photos from iPhone". But that seems to remove all of the photos from the phone. What am I missing?