Argante is a fully operational, virtual environment for effective, secure, and accurate development of network appliances and other solutions. BlueJ is an environment designed to make programming in Java simple, and to teach the object-oriented paradigm.
Brain is a prototype based, object-oriented scripting language.
Code Crusader is designed to smoothly integrate the tasks of working with source files, compiling, and debugging, in short everything involved in developing code. DDUpdate is a cross-platform update client for dyndns.org's DynamicDNS Service.