I just purchased Skydemon to evaluate alongside other iPad-based moving-map apps (Air Navigation Pro, Memory Map). A key requirement for me is to exchange routes in .gpx format between various apps and systems. As such, I was disappointed to discover that the "export via email" option within Skydemon on the iPad does not produce an email-attached .gpx file (only the legacy .flightplan format). This makes it impossible to migrate between apps on the iPad (I would have to go out to Skydemon on a PC, and convert the file there, then re-import etc -- i.e., a non-starter).