Equinox is a new implementation of OSGI (a component integration platform), which is quite a departure from the development tools focus of the Eclipse Foundation. Being developed under the Eclipse umbrella, the project has several resources available to ease your invlovement.

Naked Object is a Java 5 framework that lets you develop your domain objects, and automatically generates the user interface (rich client or web based) and the database abstraction, based on Hibernate. Eclipse plugins are available to ease development. The Server Side has a good article describing the framework, released under the Apache License.

The first version of the PHP Development Tools for Eclipse have been announced, and provide avanced editor support, PHP debugging, a testing framework and extensive APIs so developers can further enhance PDT's capabilities.

It is developed by Zend with support from IBM.

Subversive, an Eclipse client for Subversion, the Souce Code Management system developed with the goal to make a better CVS. It is based on SVNKit, the Java svn library formerly known as JavaSVN.

It features:

• Interactive merge operation, similar to merge in Eclipse CVS plug-in
• Full projection of Eclipse refactoring operations into Subversion
• Support of recommended repository layout, including trunk, branches and tags layout
• Cross-project atomic commit
• Automatic resolving of conflicts
• Correct cancellation of operations with Subversion
• Recursive directory revision comparison
• Adding repository locations with same URL
• Data validation in forms

Polarion also published Subversion training material under a project called SubTrain. This will be of particular interest for companies switching to SVN from another SCM.

These projects where announced at the release of version 3.0 of Polarion's Application Lifecycle Management product: Polarion ALM, working seamlessly with Subversion.

Polarion also provides free, closed source tools: FastTrack, and Eclipse issue tracker backed by Subversion, SVNExpress, a software bundle to get you started with Subversion, and SVNImporter, a tool to migrate from other SCM systems.

RedHat Developer Studio is a set of eclipse-based development tools that are pre-configured for JBoss Enterprise Middleware Platforms and Red Hat Enterprise Linux., available for both GNU/Linux and Windows systems.