http://www.logelog.com/utils

I tested Relirescue during the Big Spring Internationals. I found that it created a perfect IGC and KML track log file that you can email to yourself. Therefore it works as a great backup GPS.

What I couldn't get it to do well is send Belinda SMS messages. It would send one or maybe two, once five SMS messages (I had it set to send one every half hour). Often the only message sent was one at launch.

I'll test it again soon.