Yeah, saw this. I had a feeling this was going to be the case. My guess is if they never submitted their app to Apple this would never have happened. Probably brought the attention of Sirius XM and they squashed it.
I would have loved this. However there is always Slacker radio which does an excellet job. Besides, XM is now charging and extra 2.99 to access XM Online. It used to be FREE. I am happy with XM in my car.