I'm still looking for a way to "save current GPS coordinates" to some kind of map, for later reference.
me too, seems like such an easy thing to do. Geo caching has some apps that get close, but I haven't used them too extensively.
I go camping and riding, and a thing we like to do is ride out to some remote area and bury a bottle of booze. Mark the coordinates, then come back on another trip and dig it up and drink it . -- I guess that is some form of Geo caching
The Pinpoint app would work well for that. Once you email to yourself & your group, you can open the email, click on the coordinates & a Google map is generated with the point shown on it.