Most papers published about PUSH can be downloaded from here. Since the PUSH database is Ericsson property, the POP prototype is not generally accessible. Some screen dumps of POP are accessible from the page. Comichat is a chat program which displays an intelligent interface. The chat session is displayed as a comic strip, and some intelligent planning takes place to plan the layout and content of each comic frame.
Participants can select their own characters and control their face expressions.
Comichat runs on Windows 95 and Windows NT 4.0. From here, you can download a set of slides on this subject. The slides were originally produced for a course seminar at the intelligent interface course at Stockholm University in 1996. Pattie Maes, professor at MIT Media lab, is the leading authority in the area of collaborative software agents. She frequently appears at conferences, debating the pros and cons of software agents with Ben Schneiderman.