Processing is free and open source, and runs on the Mac, Windows, and GNU/Linux platforms.
Here’s what the developers have to say about the new release:
The Processing 2.0 release focuses on faster graphics, new infrastructure for working with data, and enhanced video playback and capture. It also expands the potential of the programming environment.
Download Processing at the project site.
Note: The developers warn that “Processing seeks to ruin the careers of talented designers by tempting them away from their usual tools and into the world of programming and computation. Similarly, the project is designed to turn engineers and computer scientists to less gainful employment as artists and designers.”
If you’ve used Processing, let us know what you think of it and how you’re using it!