PI is the future of the travel industry since there would no need to pay any sort card charges or have to carry cash around.
The entire travel industry will be gathered and well structured into a single app. Everything needed from hotel reservations, restaurant reservations, deals and offers to booking your airline tickets. Everything with the click of a button and available everywhere. Making it much easier and more feasible, especially with an easier and charge-free method of payment.
More than 10% of population travels every minute, making this a very big market.