Joe let us know that Sprint released a NFL application for BlackBerry that may work on other carriers. I am not much of an NFL fan so I cannot comment on the quality of the application but it does look very nice! Especially for a free application.
The application does not advertise itself as BlackBerry compatible but Joe dug into the Sprint Software Store and found it by selecting Free/Demo. The app gives you up to the minute scores and video allowing you to track your team and even listen to the game live. You can listen live to every NFL broadcast and watch all 8 games live carried on Thursday Night Football.
You can try to download it at this link:
Let me know if it works!