This is not exactly a post, but it is all ham radio. Linux will have to wait for next time.
I provided a short article about the Mobilinkd APRS TNC to our local club newsletter, and was considering quoting it here, when it occurred to me to just link to the newsletter.
You can find my article on page 5 of the PCARA Update for January 2014. Check out the other articles and issues too, it’s a pretty good news letter.