To listen live to Green Bay Packers gameday broadcasts on your BlackBerry device download the TuneIn radio app for BlackBerry. Then go to the Sports category and locate the Green Bay Packers flagship radio stations that stream their games live. You can also search for "Green Bay Packers" to find a listing of stations.
The TuneIn app has access to tons of radio stations, so you should be able to listen to pre and post game audio, as well as catch other games around the NFL.
Keep in mind, in the past many Packers stations don't stream games live due to contractual agreements, so if you can't find a Green Bay Packers station, then try finding a station of the Packers opponents to listen to the games live.