The Weather Channel has recently introduced a new "adventure" series called From the Edge, and instead of the usual weather forecasts and reports, the show seeks out some extreme weather, exploring the world in search of some of the craziest natural phenomena around. What's most interesting about this from our perspective, however, is that the show has a free companion iPad app, designed to connect up viewers to all kinds of extras based around photographer Peter Lik's journeys. The app actually "syncs" up to the show's audio, and feeds out information in what seems like real time as you're watching.
Even if you're not into "crazy weather" programming, it's a really cool idea.