The Drools team is pleased to announce an "incubator" release of the Drools IDE (plug in) for Eclipse. This has been contributed by Kris Verlaenen.
The plug in is for Eclipse 3 and can be downloaded from here.
Place the jar in your plug in directory. The plug in has built-in help content, so once it is installed, go to Help / Help Contents, and then choose Drools to find out how to use it.
This plug in is currently in "incubating" status, its still early days, and works with Drools 2.5 Beta at present (it comes pre packaged with the dependencies needed for Java semantics).
The plug in source is presently in CVS as drools-ide for those interested. It is also being adapted for the new Drools 3.0 codebase, and thus will be migrated to SVN eventually.