So they really claim that Apple's sin was that they put in the contract MFN in the form "if the price is lower is some other store it can be that low in our store too."

Strange.

Edit: "the use of a unique "most favored nation" (MFN) clause. Under the DOJ's reading of the Seventh Circuit's Toys "R" Us decision, the DOJ argued that this was a per se violation of Section 1 of the Sherman Act."