There's nothing in my post that you quoted that stated that Apple would increase their prices, I said that they can generally name their price and people will pay it. When the iPad came out they priced it $500 and people paid it despite the naysayers that said it was still too expensive.
You're overstating when you said that Apple can pick it's price and their customers will pay for it. Apple customers will pay a premium, but that doesn't mean they will pay anything. If the iPad came out starting at $999, as some people guessed, it's highly, highly doubtful it wouldn't have the marketshare it does now.. And if the OLED was used in the new iPad, it sounds like they'd have to tack on another $500-$1000 onto the price. That would price the iPad out of range of the majority of potential customers, making it a niche product.