XM Radio Mobile on BlackBerry
The mobile XM satellite radio network offers music and comedy channels for a total of $8 a month. Not all BlackBerry models are supported; check the list at the vendor's site to see if yours is one of the lucky ones.
Note: This link takes you to the vendor's site, where you can download the latest version of the software though the BlackBerry browser or by texting. The price given is the price for a monthly subscription.