Waypoints are updated via Iridium

Today I discovered (and repeated as controlled experiment) that Waypoint(s) are created / edited by iR MINI updated on MapShare and on the map on explore.garmin.com via Iridium.

Probably, you have noticed pointed up arrow (communication indicator) which appears on the screen immediately when Waypoint is created or edited.

Interestedly, but it doesn't work in the opposite way, ie Waypoints are created by explore.garmin.com or Earthmate app are NOT synced with iR MINI via Iridium.

Probably it is well know functionality, and probably it works for other iR products, but it was absolutely new for me.

Also it can be used as additional communication way in case your MapShare is shared with some friends, and new Waypoints with descriptive names (max is 20 symbols) can give them extra info re your trip.