Hi,
when you plugin your iphone does the "fotolader" app launch? (thats what its call'd in dutch but i believe its called camaraimport in english. but its a preinstalled mac app so it should be on your mac. the icon is a little grey gamera)
if not open the app and check "open when camera is attached". i chanced the default import folder to a folder i call "sorting folder" and check delete after import. that way when you attache any kind of camera it pops up you just hit import all (or selected if you want to )and everything gets dumped in the sorting folder. from there i use hazel to first sort in to folders based on the camera model "make" and then with in those they get split up in to folders based on yyyy-dd-mm.