PaintCode (US$99.99) is a vector drawing app that generates Quartz and Core Graphics Objective-C (and C#/MonoTouch) drawing code.
First released this March, the app was inspired by Apple's introduction of the Retina iPad. It allows developers to create resolution-independent art that adapts to the physical and geometric differences between devices.
It's somewhat similar to Opacity (which I'm told it is no longer under active development), but with tools that specifically target Apple's latest technology. For example, PaintCode includes a Retina preview button that lets you visualize how the art will look on higher-density displays.
Supporting both OS X and iOS code generation, PaintC
