Rumor has it that Favre put in a call to Detroit, to help them prepare thier defense against the Packers. Apparently he spent about an hour telling them every single thing Green Bay does on offense.
Here's from the guy who broke the story...
http://www.jsonline.com/story/index.aspx?id=807804
So, assuming this did happen, what the heck? First, while it's not violating any regulations, it's pretty darn class-less. And for those who say that what the Packers did to Favre, with the trade and all, was unfair, that's the nature of the game. Calling a team who happens to be playing a team your mad at is like the kid on the playground who takes his ball and goes home when he doesn't get his way.
I'm a little disgusted.