A Sirius XM application is in production for the iPhone, according to reports. The app is said to be in development by GeeksToolBox as part of the StreamSmart project, which aims to allow the streaming of Sirius, XM and Internet radio to multiple platforms including the iPhone. The name of the app, StarPlayr, may indicate that a partnership with NiceMac, as StarPlayr is the name NiceMac uses for its Mac OS X software of similar function. The Sirius XM app is allegedly still in an alpha stage, meaning it remains under heavy development and that a number of leaked details could change.

According to the source of the leak, battery life -- a concern on any portable device -- has been performing very well. This is because audio is delivered in a format native to the iPhone, in contrast to other streaming apps, which must often convert sound first, thereby draining a handheld's batteries. The source also reports that sound quality on the iPhone is so far very good.