The following good news arrived on the email list:

Since many asked for it, the JGrass team finally releases a prealpha JGrass package.

This is the first touchable result of a long time of heavy development to migrate the old JGrass
functionalities into the new udig framework. Also the new website (still www.jgrass.org) and trackers, based on the Savane engine, are on their first run at the Free Software Center.

If this release has been possible, then only through the great uDig community that accepted us and gave us every needed help. Hat off to Refractions and its developers for supporting us and being patient.
Welcome to the new JGrass prealpha, the leap year edition!!