Well, I don't want to be out of line here but I was certainly hoping that the AS in AS-MSG stood for Aerosoft - as far as I am concerned that could only be good news.
Also, in the "being pedantic/keeping hope alive" mode, saying you cannot comment is not the same as saying you have nothing to do with it. Just compare and contrast what ORBX have said ("We knew nothing about this until it was announced") with what Aerosoft has said ("We absolutely cannot comment") - I am paraphrasing in both cases but you get the gist.
After all, MS has said something about working with people in the industry so surely there must be some well known developers on board.
Thanks for readin'