Alight is a startup by some MIT grad students who think they have a bus-schedule app that could turn into a bus online community. Their app (currently just Android) will let you see when the next bus is coming - and then, as you ride, tell you stories about the buildings and places you pass.
Miles on the MBTA, the Cambridge kid who has been busy riding every single T subway, commuter rail and bus line (with excursions to Worcester, Providence and western Mass.) has been interning for the company and describes what you could get:
Once you're on board, the app will use your location to play "stories" all along the route. These can range from sports to history to local attractions, and you can sort out which themes you prefer to customize your experience. It makes bus rides so much more interesting, not only for tourists, but also for locals who might learn a thing or two about new neighborhoods!
The app lets users record their own stories - which will then be played to other riders. Tell ten stories, get a company water bottle.