XCSoar is a tactical glide computer for glider pilots, paragliders and hanggliders.
You need waypoints, airspaces and a map file on the SD card. Read the manual for installation instructions (http://www.xcsoar.org/).
This release is a preview for the upcoming version 6.2. At this point, it may still have critical bugs and may be unreliable.
Report problems in our bug tracker (http://www.xcsoar.org/trac/newticket).
This is free software, developed by dozens of volunteers all over the world in their free time. New developers welcome.