Helma NG
Helma NG stands for Helma Next Generation and is a version of Helma built from the ground up. Since Helma NG does much more in Javascript and less in Java, it is more flexible and open than Helma 1 ever was. See the slides to Hannes' presentation at the Helma users meeting to get an overview.
There is a dedicated wiki space for Helma NG and a mailing list.