Tor Norbye's weblog announces that Sun Microsystems will demonstrate a premier at JavaPolis: JRuby on NetBeans.
A first screen shot can be seen below, you'll notice semantic highlighting (for example, parameters are shown in different colors than local variables), code completion, mark occurrences (other uses of the length method under the caret is highlighted), ...
Scripting at JavaPolis
Following scripting talks are scheduled during JavaPolis :
