The dragon curve fractal is described here in Wikipedia.
The following YouTube video shows where they are in the Jurassic Park novel, and how to create them simply by folding paper: Dragon Curve. [Via Gizmodo]
Fractal Candy for iOS has been updated to version 2.0.1 and now includes native iPad support (including retina resolution option), instead of running in 1x/2x compatibility mode. It looks fantastic on the large display of the iPad!
Requires iOS 4.3 or higher.
Here’s an interesting (vintage and psychedelic) documentary on fractals, narrated by Arthur C Clarke, with a soundtrack by David Gilmour and Pink Floyd: