According to the Wikipedia, Inform is:
Inform is a programming language and design system for interactive fiction originally created in 1993 by Graham Nelson. In 2006, Graham released version 7, a completely new language based on principles of natural language and a new set of tools based around a book-publishing metaphor ("Inform 7" or "Natural Inform").
Why do I blog this? I wonder what would be the combination of this in a pervasive environment.