Apple announced the new Iphone 6 today along with Apple pay and Apple watch.
Apple pay will allow people at WDW, who have an Iphone 6, to hold up their Iphone 6 to the register and pay by only touching their Iphone 6 to the register. They won't need to pull out any credit cards, the credit card info. will be linked to their phone. It's very much like how the magic band has all your info. stored and you just need the band.
I don't know yet if we will be using this new component of the Iphone 6 when we go to Disney world.