Thought this looked kinda interesting

http://blog.delorme.com/2011/06/03/delorme-inreach-two-way-satellite-communication/

I dont think I will be running out to get one but cano might! :)

I like it, looks like SPOT. I'm not sure how open is the API if I can write my own app to send and receive messages.

Maybe it can be programmed to log a smiley to every cache you pass within 100 feet of. ;)

Seriously, it does look like a nice additional safety tool.