Another example: Mathematica is well integrated with its environment and uses much more than plain ASCII. Not only does it have all kinds of mathematical symbols but you can even paste pictures into Mathematica code to do image processing.
Something like that for a Lisp language would be very cool.
Interesting. Code as data -> Data as Code. Pictures as data; pictures as code? That reminds me of some "graphical" programming language I saw a while ago. It used blocks of color to control the interpreter much like a Turing tape. The head would "move" up down, left or right depending on color, and perform various other operations.
