The Lazybones project is a server and a collection of clients. It allows one person to voice control multiple machines. Designed for software developers and sys admins, Lazybones speeds up redundant and/or complex tasks.
txtkit is a visual text mining tool for exploring large amounts of multilingual texts. It's an multiuser-application which mainly focuses on the process of reading and reasoning as series of decisions and events.
An implementation of the language described in "Karel the Robot: A Gentle Introduction to The Art of Programming" by Richard Pattis et al. Both Java and C/Unix versions are available.