Corner-A has released PhotoStyler 5.0 for Mac OS X (http://corner-a.com/photostyler). This new version features a new rendering engine with better stability and performance, improved user interface, batch processing features, as well as new filters, textures and presets.
PhotoStyler offers a way to style digital photos with your Mac. It supports all image formats that are supported by Mac OS X, including RAW images, and uses your GPU to process the photos wherever possible.
PhotoStyler 5 requires Mac OS X 10.6 or higher. It’s Universal Binary so runs natively on PowerPC and Intel Macs. It costs US$30.