Patrick Murris has some nice screen shots and descriptions posted up on his blog.  I’ll recap the ones I liked the best here, check Pat’s post for the full details.

Airspace builder
You will find a new render.airspace package you can see at work with the examples.Airspaces application. It includes a number of geometric volumes that can follow the terrain. It’s main application is to visualize ‘air spaces’ but there is no doubt it will serve many other purposes. Be sure to have a look at the AirspaceBuilder that allows you to create and edit 3D polygons and spheres.

Multimedia annotations
A new examples.util package contains a couple useful tools like a browser launcher, an image viewer, an audio player or a slide viewer.

On-screen layer manager, status bar and view controls
There are a couple new on-screen layers that replace the status bar and layer manager SWING version and offer control over the view. All the 2D layers have now a ‘location offset’ property that let you fine tune their screen placement.

Contour lines
The default tessellator has been augmented with intersection code for line and elevation against the current terrain geometry. This allows to cast rays or compute contour lines that you can see at work in the examples.ContourLines.