I'll tell you all how it currently stands, though.

The SkyDemon ILS instrument is just about done; it's a beautiful HSI-style instrument that switches to GPS-based ILS automatically when on final approach, with the usual crosshairs. It's been on a couple of test flights into farm strips (one partially in cloud) and performed very well indeed. However - and this is a big however - we are by no means certain that this prototype functionality will make it into SkyDemon.

I meant to link to this earlier, but please join in the discussion of the technical merits (and potential legal/liability ramifications) over at the Flyer forums. I wanted to expand the discussion of the feature to a non-SkyDemon audience.