This thread: http://www.advrider.com/forums/showthread.php?t=864534
Wire up your spot to as many of your emergency contacts (both email/sms) as you like. Press the Help button on your Spot, and it'll even attempt to contact fellow assistance members within a 50 miles radius of your location.
Currently over 100 inmates signed up.
Non-profit, by riders, for riders.
Blatant ad I know (I'm the developer), but it's just this kind of situation that the system is designed to help.