Also, Here are the terms of the "Conditional draft pick" that the Packers will receive for Favre:
Right now, It would be a 4th round pick in the 2009 NFL draft, and would go up rounds based on Favre's performance with the Jets this season.
If Favre plays at least 50% of the offensive snaps for the Jets this season, the pick becomes a 3rd round pick.
If Favre plays at least 70% of the offensive snaps for the Jets this season & the Jets make the playoffs, the pick becomes a 2nd round pick.
If Favre plays at least 80% of the offensive snaps for the Jets this season & the Jets make it to the Super Bowl in Tampa, the pick becomes a 1st round pick.
Also, if the Jets trade Favre to the Vikings, then they would owe the Packers 3 1st round draft picks.