> How about a button at each stop, with a live estimate when the bus will arrive? There are already many, many apps for that. Google Maps will give you some d

> How about a button at each stop, with a live estimate when the bus will arrive? There are already many, many apps for that. Google Maps will give you some decent good route mapping and alternatives, though less realtime than apps that use data back ends like NextBus. You can do better routing than Google if you're familiar with a route/combination and its intricacies, but if you're in a part of town you don't know as much, Google Maps' transit routing is a godsend.