I love food analogies. I think of the Air as a large pizza, and the rMini as a personal pizza. Despite having the exact same ingredients, a large pizza will ALWAYS taste different than a personal pizza. It's all in how the ingredients play together in the oven. Moisture, surface area, weight, etc. all factor in to how a pizza tastes and feels in your mouth.
I agree with that.
However, Apple seems to limit the functions (jailbreaking programs) to protect the user experience on their devices. To me I would assume that Apple would want users to see the same picture at the same quality and color across devices.
Looking at Seaturtle.org the apples stores seem to have nothing in stock. Doesn't seem to be any issues on the retail side.