What Ever Happened to the Sirius XM App for iPhone?

It's been a while since we've heard anything regarding the rumored official Sirius XM application for the iPhone. (If you are not familiar with the situation be sure to check out TiPb's complete Sirius XM coverage!) Now a report from SeekingAlpha has pointed us to a App Store app called ReachMD. [iTunes Link]
What makes this application interesting is that it streams, with no subscription needed, Sirius XM's channel 160 - MedicalRadio - 24 hours a day, 7 days a week.
So with that being said, TiPb poses this question to all of our readers, does this mean we will start to see other Sirius XM channels pop up in the App Store? Or are you still holding out for a full fledged subscription based application? Some kind of major content deal between Sirius XM and iTunes?
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