BTW.. If java.net hosts the JNLP for the JOGL extension installer will Web Start automatically handle the upgrading of the extension for us? I wasn't sure if Web Start upgraded extensions the same as it does applications.
Yes it will. Currently due to a bug in the java.net web server Java Web Start is fooled every time into thinking that a new version of JOGL and the demos is present. In the future when this is fixed (or if we move the permanent location of the binaries to another location) you should be able to point to it and users will get automatically upgraded only when a new version of JOGL is posted.