Just want to go on record that pre-flight planning using Desktop (such as currently available in Litchi and Drone Deploy) is a deal-breaker for us. While I appreciate the workaround using kml/kmz files in Google Earth, this is not a pipeline we would choose.
Thank you Dan for sharing this suggestion. Desktop flight planning is a priori in the pipeline for 2018 :). I have reported your feedback to increase the priority of this feature.