For those who have noticed that iPhoto 1-4 never had a Save function, did you ever think how Apple lets you go on without committing to a particular edit?
It saves the original AND your edited version.
Every time I do a crop, for instance, I am sure that I want to get rid of the data I am cutting out. I have no way of communicating my desire to iPhoto and rely on a freeware app called iPhoto Diet to get rid of the unwanted originals. My libraries shrink to less than half their original size, which helps when archiving to CD or DVD.
Is there any chance Apple changed iPhoto 5's behavior so it is consistent with every other document-based Mac app ever (i.e., you make a change and have to choose to save the changed version or revert to the previously saved version)?