IPhoto 2.0 for iOS has two amazing new features that no other photo editing has, nor will have for the foreseeable future: It can write its edits directly back to the iOS Camera Roll, and it can delete photos from the Camera Roll. This pretty much means you can now do all your photo organizing right from the app.
Federico Viticci, the sleepy-eyed sexpot founder of Mac Stories, made this discovery by the unusual means of actually reading the release notes of the app. And thank God he did, because it makes iPhoto around a zillion times more useful.