It would be really nice to have some way of knowing the minute details of certain events real-time. I'm thinking along the lines of wait times for gaining entry into a live show or sporting event, travel times and actual timings for airport shuttles, delay alerts for traffic and flights, stadium seating availability due to cancellation or no shows and so on.
With a smartphone, you can access the web and look up the time and location of an event via its related website (if there is one). But that's a static, passive way of communication. We need some way to automate that friend who gets there early and calls you about a long line, a delay, or a saved seat.