It has been some time since I updated information about Gammu usage in proprietary software, so here it comes (see other posts tagged with gpl for more information).
I still have troubles to explain Anwsoft what they are supposed to release. The good news is that they are still communicating and even providing some updated sources (see git repository), unfortunately they still construct fake projects rather than providing real sources of the application.
Anyway if anybody is interested in digging in the sources and finding bits which might be interesting for porting to current Gammu code base, please go ahead, I probably won't have time for that in near future.
"unfortunately they still construct fake projects rather than providing real sources of the application."
That's a clear indication that there's no "good news" here: they are simply gaming cat and mouse with you.