It is possible open KML files that are sent to the mobile device. KML files are a great way to define flight area boundaries in Google Earth where the basemap coverage is often way more up to date than it is with Map Pilot's standard Apple Maps basemap.
As of version 4.1.10, you could also define a polygon, line string, or set of pushpins in Google Earth and import it into Map Pilot as you normally would (via Email or AirDrop) but rename the file from sample.kml to sample_boundary.kml to import as boundaries and linear flight plans. Adding the _boundary to the filename tells the system to import is as boundary definitions instead of just guidelines. The imported data will show up in the File Manager screen.
Use Files to copy the file to the Map Pilot folder and open the File Manager screen. Do not open the file from Files.
The following steps should be used for loading and viewing the received KML files:
NOTE: Do the following steps with the Map Pilot application already open.
Tap on the file icon in the email
Tap on the open file button in the top right of the text file view of the KML file
Select "Copy to Map Pilot" to open the file with
Enjoy fully featured KML files to use as your guide in Map Pilot.