I haven't heard of anything yet. A piece of advice (which may sound rude) : If you can't study with books other than HF, you might not be at the right place. I mean that you won't have HF for everything when you have to do some real job. So don't wait for another two years, grab one of the recommended books we have in the ScbcdLinks (EJB3.0 is good), and start studying if you really want to be certified.
This question has been posted frequently! I do recall one thread being continued till pages, 1 year back! Reza Rehman, author of EJB3.0 in action had mneitoned something of having talked to 'help' writing the hfejb3.0 book. But i don't think it go anywhere.