If anyone is interested in Autoflight Logics iOS application but confused with the huge amount of options I have written a brief guide to a simple orbit around me using my iPads GPS coordinates over at http://www.phantompilots.com/thr ... -orbit-guide.53575/
The app has some interesting facets to its design - for example I like the idea of being able to specify the angle (bearing) that will be applied in Follow - this would stop the quad swinging round as I've seen in some videos.