Portal on Rails

Hi,

      Is any member of this list aware of any add-ons to Rails to make
available [drag&drop] Portal functionality, in the sense of the Java
Portlet specification (see Portal software like www.liferay.com) or the
netvibes project (www.netvibes.com)? If not, perhaps someone in this
list is aware of such a collaboration on the net? I would like to
participate in such a project.

cheers