DJI announced version 3.0 of its software development kit, or SDK. That's probably not very interesting to you, since most people aren't in the business of building apps to interface with drones. But to help spur developers into working with its SDK, DJI also creates an annual challenge with a cash prize. This year the competition has a very cool and noble theme. DJI is partnering with Ford and the United Nations to offer $100,000 to the team which builds the best application for launching a drone from moving vehicle as part of a theoretical search-and-rescue mission.