Is it possible to get access to the position commands to use with external devices ?
I remember your early hardware that mounted on the drone and interfaced the commands. I had some ideas that it could be used to add object hold and tracking for other remote control pan and tilt heads, not necessarily aerial ones.
I'm thinking something along the lines of,
receive an RTSP (or other type) stream in your app for apple/android device.
Pan Tilt Zoom ? data is output via a simple rs232 published protocol on an attached usb to serial dongle.
You could specify device and serial converter to reduce compatibility problems
User can translate data to required format for robotic pan and tilt head to be controlled so you don't have to cater for many different devices.
Obviously this is more of a niche market but you could make a specialist app or license key at an increased price point.
Hopefully it wouldn't involve much extra work to develop as from an observers point of view it would appear most of the functionality exists.