In a month my ten month old son and I are taking a roadtrip fronm S. Dakota to Labrador, Canada. Is there a device out yet (Delorme comes out in Oct) that is a gps but also allows you to send out short sms messages to whomever letting them know you are safe? I don't want the wife to flip out when I don't contact her for two or three days b/c I won't have cell coverage.

thanks for the help