I'm no dev but this shouldn't be too difficult to figure out. I'll take a look this on the 10th when I have some real free time available. We're just trying to figure out which apk's and libraries are needed solely for cellular connectivity right?...
Yes, I can recommend the latest stable build of Code Name Android (CNA). It works like a dream. My apn's don't disappear nor do I need to do anything special to get gsm working. In fact, I came from a backed up version stock straight to it and gsm...
Now I feel dumb.
I do too. Technology always has some obscenely simple answer to the issue's that torment us the most.