Last week I got by boarding tickets from Amtrak on my Iphone as PDF to go to NYC, and I wonder if the airlines are using this tech yet instead of printing out your boarding tickets. Going to Disney in December on Jetblue while I will have a printed copy of my trip, having one less piece of paper in my pocket and a copy on my cell phone instead of finding a printer at disney for my return flight will saving me worry when i get to the airport.