Thank you for this group!
This is one of my biggest gripes about mobile app development with Ubuntu Convergence (whatever you refer to it as). If you were to run a Google or Amazon search for books related to iOS or Android app development right now, you would find more hits than you would for Ubuntu Snaps. This is exactly the catalyst the Ubuntu mobile OS community needs right now to become a success.
I'm totally with you. We need more Ubuntu App Dev documentation! That's something we will work on as soon as the fork is up and running.
Glad to hear. I'd like to compile a shortlist of current languages supported by Snaps in a followup post. Something small, nothing fancy, but something that can be used as a base reference.