Hmmm... interesting bit of kit. Very expensive service charges tho, $20 per month (or more) 50 cents per text (or more) and a charge for track points.

Looks like it is essentially a combined EPIRB and tethered SMS Sat Modem sorta.

SPOT would still be my weapon of choice and a Sat Phone if you want two way comms but I can def see why it would be good for some people.