Mediaguide introduced an application for BlackBerry mobile phones that allows users to view what songs are being played on a radio station. The application -- called Radio Companion -- will send users an e-mail with the track information of songs played at any of the 2,700 radio stations Mediaguide tracks, as well as provide a link to then purchase that song online.

Interested users will have to download the application from developer Nobex Technologies. The program does not allow users to stream the songs themselves.