Why does it need to be developed or approved by smooth? Anyone can develop anything and run anything. I didn't try that Android Aeon node because I don't own any Android device. Also, it doesn't make sense to run a full node on a phone if there's no wallet software on it (but the situation might change with the emergence of MonerujoAE).
The development in the mobile area is slow/lacking simply because there is no one capable of it and willing to push hard for it. You're welcome to work on it, if you can.