I disagree with the last part. Apple desperately wants to be in the commodity payment processing business. They want a cut of every transaction that takes place on a cell phone, which someday soon may be almost every transaction in the consumer economy. Normally the transaction processing business is a small slice of a huge pie. Apple's plan is to take a huge slice of a huge pie. Obviously it's in no one else's interest to give them all this extra pie, so Apple figures it will abuse it's market position to force everyone to go along.

It's pure evil, but that really shouldn't surprise anyone at this point.