You've heard about Glimmer:
text "JRuby on SWT"
text "Hello World!"
You've seen Glimmer in action at EclipseCon 2008:
And finally, Glimmer is proposed as an Eclipse Technology Project with the Creation Review scheduled on Wed, 16 Apr 2008 at 1600 UTC:
If you appreciate the ideas behind Glimmer, and would like to see it grow, or would like to become a part of the project by contributing your own ideas or code, feel free to express your interest by joining the Creation Review call-in meeting on April 16th at 11AM CT (GMT -06:00).
I will be presenting some slides to review the purpose of Glimmer, where it is now, and where it is going in the future.