I'm not sure that Who Framed Roger Rabbit? is good. I remember thinking it was really good, and the concept is a sound one, but I don't really remember much about it. So I reserve the right to revoke my endorsement of it.
Peter and I are also starting to work on another hypertext for the Madman CGI, and I am kind of working on eCow, a CGI interface to cowsay, which will be the next feature. Monty Hall's Hall of Doors needs to be a feature as well.