I doubt Apple had an exclusive on the MLC tech that Samsung is developing. Samsung started producing 128GB 3-bit MLC memory cards in 2013. They had smaller sized cards using 3-bit NAND even before then.So apple's iphone 6 Plus got a 6 month exclusive deal on the NAND it seems. Now other OEM's can buy it.
The same can be said for TSMC's 20nm SOC Process where apple got a 6 month exclusive on that manufacturing node.
It's nice to be apple i guess, but these practices hurt competition. Apple getting to big. I now reflect to the story of the Hobbit and how the dwarves were magnificent craftsman second to no-one. However their love for wealth and gold spawned all sorts of evil that ultimately led to their demise.