Talks2 is a full Smalltalk Development Environment which runs on top of the Java Virtual Machine. It comes with a ClassBrowser, Workspace, Transcript and all the things you know from a Smalltalk Development Environment. Talks2 translates Smalltalk to Java, and also uses the Java GUI and IO to run in any regular Java environment. They have a strange Web-site which apparently can only be accessed with JavaScript enabled, so you have to click to Products and then to Talks2