Pixelmator has released a free update that is optimized for Mac Pro’s dual-GPU architecture. If you’re running a Mac Pro, Pixelmator 3.1 now support 16-bit per channel image editing. 16-bit per channel image editing for other Macs will be supported in a future release. Other enhancements include Order Prints feature by integrating with MILK Print on Demand service. Slowly inching towards Adobe Photoshop territory, Pixelmator is available on the Mac App Store at a value-for-money USD $30.