Satellite Standard Group is reporting that the May NPD Group retail satellite radio reports have been released, and the preliminary results are:

Sirius: 54%
XM: 46%

At the same time, Bridge Ratings released their own 15 week projected satellite radio retail sales totals:

Facinating. So who's right? Now, I need to note that the timelines are not the same between the two retail reports above. And of course, as we always hear, NPD Group doesn't take into account Walmart sales. And, Bridge also only surveyed 7 markets. So... that brings us back to the original question - who's right?

Both XM and Sirius will presenting be at the Deutsche Bank Media & Telecom Conference, on June 13th (that's tomorrow). Sirius will be presenting at 8:20am ET, while XM will be at 11:40am ET. Times have been updated: Sirius will be at 11:20am ET and XM will be at 2:40pm ET.

Online webcasts of the event are available below:

[Sirius Webcast]
[XM Webcast]