WebSphere Studio Application Developer, like all of the products in the Studio family, is based on Eclipse:
IBM WebSphere Studio Application Developer the core development environment from IBM -- helps you to optimize and simplify Java� 2 Enterprise Edition (J2EE) and Web services development by offering best practices, templates, code generation, and the most comprehensive development environment in its class.
The mission of the Web Tools Platform Project is to build an extensible tool platform upon which tool developers can build more comprehensive web tools and tool suites. The project will build on the base eclipse platform to provide a set of common frameworks and services to allow tool developers to easily build highly integrated tools that work with virtually any web application server that supports the J2EE specification. It is a goal of the project to work with as many application servers as possible. The project will also produce a set of extensible tools designed to validate and showcase the platform.
Metacomment: IBM is a major contributor to Eclipse, IBM has an award-winning suite of J2EE development tools. Eclipse announces the Web Tools project. I have absolutely no inside knowledge and I'm only speculating, yet I think I can connect the dots. -- Dan [ July 18, 2003: Message edited by: Dan Kehn ]
Co-author of <a href="http://www.jdg2e.com" target="_blank" rel="nofollow">The Java Developer's Guide to Eclipse</a>, 2nd Edition<br />(Yahoo group <a href="http://groups.yahoo.com/group/JDG2E/" target="_blank" rel="nofollow">JDG2E</a>)