I agree the exam is probably about two years' away. However, take a look at this from an author's perspective - it'll take about a year top update the current book for EJB 3.0 and that book will be out of date in just one year - a lot of hard work to put in for very little :-).
The bad news is that I have hit a stumbling block on this - the publisher of EJB 3 in Action, Manning Publishing will not allow me to work on a "competing" book. I am trying to sort that out the best I can. Also, as always, I would really appreciate someone lending me a hand as a co-author.
Independent Consultant — Author, EJB 3 in Action — Expert Group Member, Java EE 6 and EJB 3.1