Question??????
Why in hell would I want anybody/everybody (including my lovely wife) to know where I'm at every moment I'm flying? It ain't any of their damn business.
Lets see now, I'm required to have a brand new 406 ELT ($1000), a sat phone, (cause a regular cell phone doesn't work in Alaska), a GPS cause I don't look outside the cockpit and I don't have a chart, so I have no idea where I'm at without the little colored map thingee on the screen, now this new spot thingee that broadcast to anyone in the world, (if they have the proper frequency,) my exact position, name, "N" number, phone number, etc, etc.
Now I enjoy fooling around with all the new electronic crap as much as anybody but..... I would never depend on it. NEVER
Here's how I do it.
I tell my lovely Bride,,,,,, Me and Old Duke are going across the Inlet for a few days. We will probably be home by Saturday. If I ding my plane I may be a day or two late.
I throw a case of dog food, some Top Ramen, a case of Hormels chile and a few cases of COORS Lite in the old Cub. I light her off, and we're gone. I go around the Kenai zone so I don't have to talk to them.
At this point I know I'm on my own. If I screw up, I gotta fix it.
And as a matter of fact, I have screwed up, more than once. I fixed the screw up, and got home.
If there is any "Point" to the above ramble, it is, Don't totally depend on all this electronic stuff. Batteries will fail, then your on your own!