ok, selling new devices are fun, especially if the €350 device consists of parts for €60

but honestly.. isn't it possible to comment out code for other receivers, and make a pure HoTT firmware for NaviCtrl 2.0 ?
I guess you have a code profiler that can quickly sum up the space that can be saved.

There's a lot more than just the parts to pay for here

I don't understand where you wanna go with this? Some kinda optimization ?

Yes, - how much codespace could be saved by uncommenting code chunks for spektrum and other receivers, - enough to enable HOTT telemetry ? - maybe something else could be disabled - and HoTT on ver 2.0 possible after all ?

You mean the fc 2.0 ?

yes

I don't think it's a memory problem, more a processor-speed problem?

I don't know, somebody said earlier that was due to memory... don't know what to believe, but it's hard to believe its impossible.