I just read the MorphicModel page after stumbling about the class on some occasions during the past year. I still do not understand when I should, as a developer of some application, consider to use a MorphicModel over "plain" Morphs, for example. All the pluggable stuff made with MorphicToolBuilder are MorphicModels, but I did not grasp the added value MorphicModel supplies here. What I did notice are some menu items revolving around prototypes (something like 'Be the prototype for this model'), which sounded interesting, but got no mentioning on the Swiki page.