huh, technically i already "have" this for free
i'm not joking, there are simply some in-game buttons and screen sections on my ipad that i've touched so many times that it creates a specific "feel" on my fingers that mildly reflects the displayed thing i was touching (e.g. steering buttons with arrows in a car game feel like i can actually feel the arrows on them with my skin, the joysticks in Terraria feel as if they were real and moving indentations on the screen, etc)
it's hard to explain but it's there
