This is a very good idea, however, this app is completely in accessible for those of us who use voice over on our iPhones. So those of us who are visually impaired or totally blind and do not feel like using the ticket machines at the stations are unable to utilize this app for purchasing tickets on the trains. I hope that in the next release, this app will be able to be used by people who use voiceover.
Dmbfan2000 about Metrolink