Yes, it's official! Glimmer is back on GitHub with support for JRuby 1.5.6 and Facets 2.9.0.
It also now includes an .rvmrc file to facilitate working with JRuby via RVM and a Gemfile to facilitate pulling in libraries like Facets with the right version.
The project will no longer be hosted on eclipse.org
Check out the GitHub repository over here:
This will be the main home for the project from this point on.
If you need a refresher on the project, here are some good resources: