It appears that XM worked the deal. They will simulcast starting tomorrow. Obviously Citadel will be on the button and the show will be on a delay for them. Also Citadel will take commercial breaks but O and A will continue on XM. Other then that I really don't know how it would work. I think this is good for XM as they are now able to make money off one of its original shows.
It is also pretty obvious that Citadel did this to jab Howard as they have been having a feud recently over them stopping his show at 10 am. And they could not have irritated Howard more by replacing him with O and A.