Ok, here's my story :-) 

I was out on the McKenzie river in Oregon waaaay down a trail and I located an interesting feature on the river.  However, to get to it I had to be on the other side of the river.  I knew there was a road over there.  If only I had some way to mark my current location...  But how?  Wait! of course!  I'm carrying a phone with a GPS and mapping software! 

Well, not mapping software because I'm out of data range and GMaps didn't pre-load my maps, but that didn't matter, all I needed was to waypoint my current location, get across the river and hike until I found the point nearest my location.

Except I couldn't find any way to waypoint my current location.   Sad Trombone.  Please oh please add this feature!  And of course the ability to track to the waypoint...

Also, google maps crashes a lot when it doesn't have a data connection.

Thanks,

DougM