iOrnament now available for ios devices (see my project at the ArtFair Mainz in 2008 – the tool then was a desktop application, terrazzo, and you create the tiles from photos. IOrnament uses vector drawing.)
Don’t miss the “related projects” page of the author Jürgen Richter-Gebert, mathematics professor at the Technical University of Munich !! He tries to combine mathematics, modern visualization technics and playful approaches to demonstrate that math can be beauty and fun.
How could we miss him at our symposium! He was involved in the great “Symmetrie” Exhibition in Darmstadt in 1986.