There are a bunch of photo-related apps out there for the iPhone and Blackberry, among other smartphones. Many are for photo-sharing (i.e. Flickr, Facebook), but there are a vast number now for editing pictures you took directly on the phone itself.
As built-in camera technology gets better, do you think the pictures shot with handhelds are more worthy of the time for a serious touch-up? How many of you are taking advantage of these applications?