If it is useful to many, I'm sure someone will accomplish it, but for at least two years to date has not been judged useful for many.
When one thing is useful for a few and it is made on demand I guess it can be considered a commission work.
In any case even libraries useful to the entire community B4A were paid for repaying time and resources of the developer.
All those good developer already have an important project to accomplish.
If you have to distribute your app with google play you may have problems because all payments for electronic services (not physical goods purchases) must be made with Google Wallet, not with other means such as PayPal or electronic money.
Except that you sell shoes or clothes.
Honestly i do not have time for the drones lib too. :-/
Extending the Drone lib is a "Hobby-Project" as i have such a Drone. So the focus on coding on the lib can be lost when doing customer jobs.
Regarding the bitcoinJ lib you mentioned in your email: I already answered that this lib seems to be for Java (windows) but unfortunatly not for android. :-(
If it was for Android then i probably already started to wrap it. But i think this lib is not the right to use under Android.
Honestly i do not have time for the drones lib too. :-/
Extending the Drone lib is a "Hobby-Project" as i have such a Drone. So the focus on coding on the lib can be lost when doing customer jobs.
Regarding the bitcoinJ lib you mentioned in your email: I already answered that this lib seems to be for Java (windows) but unfortunatly not for android. :-(
If it was for Android then i probably already started to wrap it. But i think this lib is not the right to use under Android.