It could work on a technical level, like it's possible. But iPhone is only a little more than half of US phone users, if you dial into the demographics maybe 60-65% of Disney park guests have iphone. Overseas that drops to nothing. The amount of people buying a phone to go to Disney is probably 0 since hardcore fans/guests are likely on iphone already and adding another 2k to a ticket isn't feasible. It wouldn't cover R&D, let alone the Disney cost.