Mission Planner is a ground control station for ArduPilot. It provide setup and flying support, as well as reviewing recorder flights.

It Provides
Point-and-click waypoint entry, using Google Maps/Bing/Open street maps/Custom WMS.
Select mission commands from drop-down menus
Download mission log files and analyze them
Configure settings for your airframe
Interface with a PC flight simulator to create a full SITL UAV simulator.