Walmart's launch-day discounts to offer Apple's iPhone 5c for $79, 5s for $189

http://appleinsider.com/articles/13/09/12/walmarts-launch-day-discounts-to-offer-apples-iphone-5c-for-79-5s-for-189

One would assume Apple has approved this. Could be that Walmart is discounting to drive more people into their stores. Could also signal that there is price flexibility with the 5C and it might not be as expensive as thought, or will go on sale closer to the holidays. Of course that's not what Apple typically does but they have to be aware of the negativity around 5C pricing so maybe there was flexibility built into the pricing.