Are photos still saved on Mac with PhotoStream after deleted on iPhone?
if you want them to be safe for sure, just drag them into a new folder. but i dont thing it will erase them, because they are stored in icloud, and when you stop them on the iphone, it asks if you want to delete them, and i would imagine it would also ask on your MBP if you decided to stop syncing them. so to be clear, dont delete them by hand on your phone. go to icloud, where it lets you pick what to sync, and turn off photostream. it will ask if you want to keep photos on your device or delete them. it will delete on your phone but not in icloud. case in point, i just reset and deleted everything on my phone to get ready to sell, and all of my photostream pics are still in tact on my MBP. so that would make sense.