Connecting people on public transport
Every day around the world, people take public transport yet do not interact with each other. It would be cool to make use of this time by having pull down note tabs with pens attached to start a story. Or a Note (eg Samsung Galaxy Note) to write on.
You can write one word or sentence. There can be 'suggested' rules to help with the interaction of people in the vehicle. Eg you can ask people near you for help. Like solving a crossword puzzle..