We found out that a demo for Flight Simulator X will be available tomorrow evening. The demo features the location of St. Maarten in the Caribbean and includes 2 airports and 3 missions. Fully optimized for Windows Vista, Flight Simulator X will feature 24,000 airports located on every continent, and new aircraft, from classic seaplanes like the de Havilland Beaver and Grumman Goose to the Cessna 172.