Has anyone used the optional upload for...
Has anyone used the optional upload for non-emergency communication? Is this something where you can push a button and it sends an email that says "all ok" and pinpoints your location for your family? And is there a monthly fee associated with that?
Nope - this is for emergency situations only. When you push the button, help comes. If you want some of the "Ok" feaures, you can look a the SPOT and Delorme devices.
Actually the SARlink 406 does have an "I'm OK" function on top of the SOS function where you can send prewritten messages to family and friends, for a subscription of course.