I think the holdup right now is based to a contractual problem with MLB. They might have to throw a financial bone to them to allow the addition, but with the current financial situation over there, I don't see it happening....
The best solution would be to buy one of those dual service tuners set to debut shortly (hopefully before Christmas), or to switch to Xm and then get the Best of Sirius to get Howard, NFL, Playboy, and NASCAR (Martha Stewart too, but I'm guessing you could care less on that front).
I was actually surprised that us XMers could get the NFL games, but I'm happy they did. I wouldn't have gotten the Best of Sirius otherwise.... I have a subscription to both right now, and I'm probably going to drop Sirius now, but the portable radar detector like Sportster I have is good for rental cars when I travel, so I'm going back and forth on keeping it....