This time it's PFPX - Professional Flight Planner X. Here, you can read status update:http://www.pfpx.com/

Was really hoping this would be out in time to pair it with the NGX.

Yeah, me too. I don't mind waiting for a good product. It's just.. so many addons get delayed these days.

Unlike in the rest of the video game industry, FS add-on devs usually don't have publishers breathing down their necks with release dates.

If it means a better product, which I'm sure that's what it means, I can wait. From looking at the photos, is seems this will be the definitive Flight Planning software.