I assume you're using your smart phone with it. I would think if there isn't a share method that you could still manually enter UTM coordinates like you can with a regular GPS.
I emailed them a couple weeks ago about being to export your data in some format. They said they are working on it. But as of right now the only way I know if is to manually enter it like 5miles said.
Once you save the Waypoint, you can see the full Lat/Long in a small window in the upper-right portion of the screen. Send those manually. That's what I'm doing right now.