If Goodell had any heart, he'd suspend Belichick for the Super Bowl. This was clearly cheating - 100% premeditated. The forecast was in, and it was going to be wet. Makes sense to deflate the ball so it's easier to catch, gives the RBs a tighter squeeze, and is easier to throw.
Interestingly enough, Jay Glazer said it was the Ravens who tipped the colts off about this.