We need yet another 'standard' for transmitting position like a hole in the head.
Let's think: Mode S. ADSB. Flarm. Pilot Aware. Now this. Too much confusion over standards merely leads to lower overall takeup - there's no point if people are flying around with different systems.
If they want to use something that is 'open' what's wrong with ADSB?
As far as I am aware, SkyDemon and the like calculate their own 'collision warnings' when fed with suitable data, and probably far more accurately given the processing power available to them over and above that in a conventional FLARM.
The point about the Flarm anti-collision algorithms (which are the patented bit of the system) is that they are designed for use in gliders, where close proximity is normal - it's only when an actual collision is imminent that there is a warning. It's quite different from, say, TCAS, which has quite a large bubble around it. It's not about processing power, it's about what you do with it.
Paul