please, he wouldnt expose the other company through an email. He wouldnt tell that info to anyone not directly involved with the company. Dont get suspicious because he avoided things about the partnership, at least not because of the email. For other reasons maybe but not through an email.
UPDATE: Looking back and re-reading it, maybe he mentioned it, but not necessarily in the way I was expecting to read it.
I figured he would have at least mentioned in the short term that they are still moving forward as was announced previously. By not saying anything it makes me wonder if it fell through, and since it was never offically announced who it was with, and then falling through if it happens, then they never have to say a word about it as it was never fully released... that is why I mentioned it.