ApertureExpert.com noted a little while ago that edits made with iOS’s built-in photo tools appear as adjustments in Aperture. If you enable iCloud’s Photo Stream feature, any photos you edit in the Photos app will appear with the adjustments badge. In Aperture, you can hide and show the adjustments you made on iOS, or revert to the original photo entirely.

via Photo edits made on iOS appear as reversible, non-destructive adjustments in Aperture | Finer Things in iOS.