Apparently the Geronimo guys are making progress.
They were actually able to demo the Sun pet-store example program at the closing sessions of Apachecon, after spending much of the conference frantically fixing bugs.
Nice work!
It's always good to see neat projects like this moving along, and for someone like me who only has the vaguest clue about J2EE the only way to be sure they're moving along is when they actually start putting something together that resembles a finished product in functionality.