Where Morphic began, as a prototype-based implementation. Here are html Morphic User Interface papers, as part of the Self, prototype-based, object oriented programming language. http://research.sun.com/self/papers/papers.html
Morphic's home now, as a class-based implementation, in a new, open source, graphics model for Smalltalk, based on the Morphic interface to Self. Much simpler and yet more general than the model used in many other object oriented languages: MVC. http://st-www.cs.uiuc.edu/squeak/headed.html