Easy-to-use, open source web development platform. Visual, drag and drop tools allow anyone to create web apps with minimal learning curve. Java architecture: Spring, Hibernate, Ajax Dojo toolkit, MySQL, PostgreSQL, HSQLDB (bundles w HSQLDB)
Jideos is a zero-installation Java IDE hosted on a server. The UI closely resembles that of Eclipse IDE, so eclipse users find it quite comfortable to use. Jideos uses GWT for development and contains many features typical of Java IDEs.
JS_Designer is a lightweight IDE to create Client-side Web-based applications ( Javascript+PHP).
The goal is to have tool to build muti-lingual, skinable, professional-looking web applications, the way you would do in VB or VC.