Indeed! Add to this older Android OS support, Classic BT devices, BT LE devices, combined LE - Classic devices (and each with their own firmware quirks), audio

Indeed! Add to this older Android OS support, Classic BT devices, BT LE devices, combined LE - Classic devices (and each with their own firmware quirks), audio routing, undocumented APIs ..and the list goes on and on. PTT is a wonderful world :)