This is why Digi needs to add Audio Unit support. Unless there is some unknown technological hurdle that I don't know about, there is absolutely no reason why Digi shouldn't support Audio Units. It won't hurt their profits. Indeed, it will make ProTools-TDM the ultimate platform. The only platform able to run TDM/RTAS/and AU. I can only imagine that they must be planning to add AU support in a future release. But there has been no mention of it.