Carl got upgraded to the Blackberry Bold Touch, and now iHeartRadio won't stream. It just buffers. Leo says that since it's a company phone, the company may be shaping or blocking access. It may also be that the phone is out of date for the current version of iHeartRadio. It may also be that packets are being dropped by the app and it's causing it to buffer. Leo recommends TuneIn and Pandora apps. They essentially do the same thing. If that doesn't solve it, then it could be a specific issue with the phone itself.