Hi,
I'm still not totally convinced that telemetry would be something that I'd particularly value, but I can see the benefit in some alarms like low battery or poor signal strength. One that I wondered about was whether you could alarm on a low cell within a Lipo pack. I was turning it over in my head, to see if there was a simple circuit that would expose the voltage of the lowest cell from the pack. Does that sound possible?
Tony S