Quoted from DefaultGen:I would love some kind of progress tracking with pinball, something like Initial D, Derby Owner's Club, or rhythm games where you get a card or USB that can save your game and unlock new stuff over long periods of time. There could be achievements, statistics of how well you play, weekly quests to earn credits
I know its not "real" but Pinball FX2 has a table called Epic Quest, where you level up your hero/adventurer and get new items which are then saved and can be used on future plays.
But I agree, having some sort of card or app that lets a machine know its "you" would work well with Pinball as well.