BBScanner allows you to listen to over 1,000 police and fire scanners, railroad communications, and weather radio broadcasts from around the world using your BlackBerry with more being added daily.
Some of the more popular scanners people listen to are:
+ Chicago Police
+ Los Angeles Police
+ Dallas Police and Fire
+ Denver Police and Fire
+ Philadelphia Police
You'll have unlimited access to all of the scanners and weather radio streams for 14 days during the trial period.
After the trial period has ended you'll need to register the app (for $2.99) otherwise listening to the police and fire scanners will be limited to 10 minutes per BBScanner session. You will always have unrestricted access to the weather radios whether or not you decide to register.