We've seen some rather interesting uses of Apple's iPhone in medicine, armed forces and a bunch of other verticals. Modified iPhones are now also being used as an electronic ticket scanner at Amtrak, a government-owned intercity passenger train service in the United States.
Passengers on a few Amtrak routes can take advantage of a new pilot program to print tickets or show a special bar code, included with a paper or digital ticket, for conductors to scan. And because it all goes through a custom app, train conductors are able to keep track of passengers on board...