When you are at the top of the food chain in the tech world (either in retail products or mobile hardware parts manufacturing), it's easy to end up in awkward situations. Such is the case with arch-rivals Apple and Samsung. According to the latest intel, Samsung has agreed to offer extra concessions to Apple in order to become the majority supplier of A9 chips for the iPhone 6S.
Supposedly, Samsung actually agreed to some price discounts that Apple demanded, by offering “almost-free backend services for the A9 chips.” The intel suggests Samsung did this so they could push TSMC (who reportedly refused Apple's price drop request) out of the picture so Sammy could build most of the A9 chips for Apple's next iPhone 6S.
This strange bedfellow relationship means that Samsung is in the position of desiring success for Apple's iPhone 6S while Apple will be be hoping Samsung can keep up with the demand in A9 chip production. It's an odd symbiotic relationship when you factor in Samsung Mobile's desire to beat the iPhone with their Galaxy S line.
The source of this intel is DigiTimes. They have a decent success rate, with solid knowledge of the supply chain, but it could still be just a rumor. It will be interesting to see how this shakes out.