This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I'm sure it has its fans, but I'd say that EJB is already there. And perhaps pretty much always has been. I've never worked on any project that decided it was appropriate to use, and know of very few that have actually used it.