Well, that's going to make it hard to convince people to buy the new unit, if you can't even tell them what (if anything) is different.
I would venture a guess that X10 is hoping to sell these to new X10 users, who might also buy a bunch of modules too, and not so much as a replacement CM15A to those of us who already own one.
Well, maybe a few to those who bought a CM15
K.
Given up to last week, I thought there would never be any more CM15A's, I don't care if the new production is just the same including all the warts and quirks. If my CM15A ever dies, at least I can buy a replacement outside of eBay.