This is a list with the purpose of clarifying to the public what payware models are FSX Native.
I will list them by aircraft type.
Airliners/Heavies:
PMDG 747
PMDG MD-11
Captain Sim 757
Captain Sim 727
Flight 1 MD-80
A2A Simulations B377
Military:
Alphasim (almost anything with FSX compatible sticker on it)
Aerosoft F-16
Captain Sim XLoad
Captain Sim C-130
Iris Simulations F-20 Tigershark
Iris Simulations Pilatus PC-9
Iris Simulations T-6 Texan II
Razbam E/A-6
Razbam F-2H Banshee
Sky Sim BAe Hawk
General Aviation:
Alphasim (anything with FSX compatible sticker on it)
Carenado Piper Cherokee 180F
Carenado Cessna 182RG
Carenado Cessna 182Q
Carenado Cessna U206 Stationair II
Carenado Cessna 152
Aerosoft Beaver X
Lionheart Creations Bellanca Super/Turbo Viking
Commuter Prop:
Aerosoft Pilatus PC-12
Lionheart Creations Epic LT
Multi-Engine Commuter Prop:
Aerosoft Twin Otter
Warbirds:
Realair Spitfire
A2A Simulations Spitfire Mk. 1
A2A Simulations P-40
A2A Simulations BF-109
A2A Simulations B-17
A2A Simulations P-47
Sport:
Realair SF.260
Realair Scout
Helicopters:
Alphasim (if it has FSX compatible note on image)
Aerosoft Seahawk and Jayhawk
Nemeth CH-53
Nemeth BO-105
Airports:
Fly Tampa St. Maarten
Fly Tampa Kai Tak
Aerosoft Heathrow
Aerosoft Frankfurt
Aerosoft Brussels
Aerosoft Budapest
PLEASE feel free to add to this or correct me. As long as it has bump mapping and self shadowing, it will be added to the list (or in the case of an airport, it is rendered properly and is marketed as an FSX product).