I just watched the Sportscenter segment on the Steelers-Chargers game. The vice president of officiating said they got it wrong, the TD should have stood. Basically there WAS a forward pass on that second lateral, the short lateral before the one that was fumbled, which I suspected yesterday, which is why the penalty was called. So the official got it correct at first saying the penalty was declined and the TD stood.
They discussed though, and incorrectly applied that forward pass penalty to the final lateral that Polomalu picked up and scored on, and since it hit the ground they thought it was dead as an illegal incomplete forward pass. But that wasn't the forward pass, it was the pitch before it, so it should have stood, and the Steelers should have won 17-10 (or 18-10 if they had to kick the PAT.)
Kinda complicated to explain, and it really doesn't matter ... I just thought it was noteworthy because Sportscenter said two thirds of the people who bet on this game took the Steelers and gave up the points, and if the officials got it right they would have won. But instead, they fucked it up, so the Steelers didn't cover. I can only imagine some of the irate gamblers right now. :lol