Just cut Sony out of the deal. No Sony music on iRadio. Watch how long it takes for Sony to come crawling back. When they do, charge them more than the other labels.
Never going to happen. And you know that will all the issues with getting iBooks off the ground and competitive - how's that fairing in comparison to the competition.
Apple doesn't need to bend over. But they aren't in the position to demand EVERYthing they want and expect to get it.