A new iPhone app in Philadelphia reverses the typical Big Brother roles. The city controller wants citizens to use the app, called Philly Watchdog, to report evidence of government waste and corruption, reports Fast Company. That could mean sending photos or video of city workers on long lunch breaks or using government cars for personal errands. It's the first app of its kind in the US, and the city got help from Apple creating it. Union officials call the $5,400 app "overkill" and a waste of taxpayer money. (More Philadelphia stories.)