"Transit also integrates closely with the new Maps in iOS 6." - I would seriously reconsider telling people that and go with a Google Maps solution. I'm not trying to be rude, this is seriously one of the best and most useful applications ever, but the integration of iOS 6 maps is going to be your downfall. My initial testing of the app showed some serious flaws with Apple's geocoder not correctly picking up on variations of address and location names.