Patience, patience.
I talked to Brad at length about the new E-mags for the IO-540. He made no special promises, but said they are still pushing hard to get them produced and out. The reason he gave, for why it's taking so long, is that their intent is to have them released as certified, to widen the customer market while protecting their intellectual property as much as possible. I don't blame them. It looked to be very promising technology.
Although his original estimate was 2 years ago, he now estimates they will be available within the next year or two. This may be frustrating to many, who are ready to pull the trigger now, but innovation doesn't happen overnight, and it's a difficult problem they are tackling..