Importing KML Files into MotionX GPS
It seems that MotionX is limiting the email import option to 12 waypoints or 1 track per email so the best course of action would be to use itunes and follow these steps.
1. Enable iTunes Drag & Drop from Menu - Setup - iTunes Drag & Drop.
2. Connect your iPad with your Mac or PC using your sync cable and launch iTunes.
3. From iTunes, select your iPad, then select the Apps tab and scroll down to the File
Sharing section. Select MotionX-GPS HD, then add GPX files to the GPS Documents
window or save GPX files from your iPad to your desktop via drag & drop.
Importing KML Files into MotionX GPS Logan Bedford Tutorials