There is some rampant speculation here so I feel the need to clarify.
First, Big East officials officiated last year's game. There were several calls (most notably the no catch ruling on a Matthews TD at the start of the game) against us that were questionable. So the accusation that we only play games with Big Ten officials is groundless.
Second, you should be very careful listening to PSU fans. Their wild conspiracy theories are quite comical. JoePa has a bout of insecurity stemming from his ridiculous belief that Big Ten refs only want us and OSU to win at the expense of PSU, the newcomer (they joined the conference in 1993). Do you really think JoePa would be so noisy if he hadn't lost nearly all his games against us? Perhaps if they actually played some good non-conference opponents, they can get some respect.
What JoePa wants to do is the shift focus away from Michigan and OSU, who have traditionally provided the identity of the conference. His open support for expansion furthers his goals. The fact that no one is listening only adds to his paranoia. So you really have to look at their complaints with a huge grain of salt.
Regarding the actual calls, Riddick touched the ball at the end, Allen's foot was down, there is a clear NCAA rule against taunting (I think Weis said "technically, that's taunting") and if you argue interference, you have to call it both ways because the ND receivers were just as obstructing. We also feel Graham was held on several occasions but there was no call.
The out of bounds play was close. The new footage says the officials were correct. I'm not sure what camera angles they had. The call was debatable, but that doesn't mean there was some huge conspiracy.