Sirius XM Radio mobile app gives access to 120 online channels
Sirius XM Radio has launched their much awaited mobile application on the Apple App Store.
It works on both iPhones and iPod Touch devices.
This mobile application gives the user access to around 120 online radio stations.
However, they are not offering access to Howard Stern [...]

XM Sirius coming to Apple iPhone soon!
Market sources are indicating that XM Sirius is nearing the launch of their mobile app for the iPhone and iPod Touch.
This is what the company had to say in email messages sent to their customers:
Thank you for contacting SIRIUS regarding whether or not there is a SIRIUS iPhone application [...]