Java 3D 1.4.0-build4 is now available:
This has a mostly functional implementation of GLSL shaders.
The following features are not yet implemented:
1. vertexAttributes in GeometryArray
3. Some of the "get" methods
We plan one more release just prior to JavaOne, which will be an
alpha-quality release. Please download and test this and provide
us any feedback that you have.