Regarding the Penn State thing, the ESPNblog had some quotes directly from Jim Delany:
When asked about it around the time of the Maryland-Rutgers annoucements:
No, not in my view," Delany said. "But I do think that you need to build, and this build really solidifies the expansion we’ve done in the past. We've done one in the East, we've done one in the West [Nebraska in 2010]. I would say the driving force is demographics, but when you look at it, you can't help but think this is good for Penn State as well."
Like the author, I find interesting that Delany would have made the last part of the statement - the ACC was starting to encroach on Penn State, so I wonder if there was a small thought at least given to this. By small, I mean, "In the 1% probability, if even this, that Penn State would be dim enough to walk away from the Big Ten money..."