Next time you want to do image manipulation, retouching, effects, and color correction to your photo shot from your iPhone, you dont have to transfer that image to your computer.

PhotoForge from GhostBird Software is a $4.99 Photo Manipulation app which can do almost everything that your desktop app can do.

PhotoForge is a superb photographer’s tool, providing digital darkroom capabilities and is also a tool for creating incredible works of art and illustrations easily. PhotoForge allows you to put together an image, combining filters, brushes, and effects. They may be hand-painted, or a composite of photographic images mixed with painting. The variety is pretty much unlimited, and the interface is simple to use.

The filters and effects can be layered to produce even more dynamic results. It’s easy to see that creating cool photos with special effects is becoming an interesting little cottage industry on the iPhone. Very little for $4.99 compares to this, on the Mac or PC for that matter.