“Hypercard, Supercard, and Metacard are all hypermedia, stack-based, WYSIWYG, persistent, event-driven, rapid software development systems. Each provides extensive customizability through a proprietory scripting language.
The aim of this project is to create a free implementation of a similar application (LlamaCard), using Perl as the scripting language and various standard Perl libraries to help implement the GUI, so that the entire package is platform-independent.”
Looks very intresting.