Here's a nice introduction video on AeroflyFS (Full Scale) from Dave Herbert

You can find more info on AeroflyFS here

In aeroflyFS you fly in a real environment. The entire 41,285 (15,940 sq.miles) of Switzerland are available down to a resolution of 40 in. Virtually all Swiss airports are equipped with landing strips, which are reproduced to their exact dimensions. Among them are numerous selected airports, which feature all hangars and buildings as well as correct taxiways. The scenery is displayed in such high resolution and photo realistic appearance making it basically impossible to distinguish from the air whether the scenery is virtual or real.