What is Squeak ?
Squeak is a modern, open source full-featured implementation of the powerful Smalltalk programming language and environment. Squeak is highly-portable - even its virtual machine is written entirely in Smalltalk making it easy to debug, analyze, and change. Squeak is the vehicle for a wide range of projects from multimedia applications, educational platforms to commercial web application development.http://www.squeak.org/
Squeak，一个 Smalltalk 的平台，可以开发很多有趣的东西，主要用于 child-education。