FLARM is the most common collision warning. There are only a few gliders not having FLARM nowadays.
In some Condor Competition flights happen accidents, example taken when joining a thermal and oversee another glider.
Even if such accidents have no effects on real people it is annoying.
So I suggest to add a (FLARM) collision warning. For examle the new DG 101 has a FLARM antenna on it's panel...
(The gliders which have the LX9000 could show the warning on the top of the Display like the real LX9000.
And the other gliders could get the standart FLARM device.)
Would ne a nice feature.
(May possible to disable for formation flights.)