Cropulator as the name suggests allows you to crop your photo’s directly on your iPhone, and works pretty well.Launch the app, and after the splash screen you are taken directly to the Photo Albums where you can select the photo you want to crop.
» App Store – Cropulator

ColorSplash lets you quickly and easily give photos a dramatic look by converting them to black and white, while keeping your chosen details in color. This effect – known as a “cutout” or “selective desaturation” – draws the viewers’ attention to the colored areas.
» App Store – ColorSplash

Big Stone Phone has announce the availability of a free version of its popular program TalkingPics, the audio recorder/picture taking field data gathering tool that lets you make slideshows named TalkingPics micro.
» App Store – TalkingPics mirco

Juxtaposer lets you combine any pictures,from your camera, saved photos or any other images, quickly and easily.Take any element from one picture and add it to another. Put your friend’s head on a statue’s body, remix your pets into a mythical creature, or magically join your favourite band, it’s simple and the process is fun.
» App Store – Juxtaposer

Face Melter is a new App Store application that allows you to manipulate and play with your photos and turn them into something totally different. » Face Melter: a photo manipulating app

Picoli is a fairly new image editing iPhone application. It allows you to place one filter- such as making the picture brighter or sharper- one over another, which can become annoying. On the upside it works really well and can make up for the iPhones 2 megapixel camera. Once you are done editing you can save it back into your camera roll and delete the original if wanted.
» App Store – Picoli