AS Johan says this reminds me of Flight Unlimited back in the day.
I can see there's a market for a small area GA type sim with STOL, Aerobatic planes, Soaring and Heli's. With a small map making it high detail becomes feasible. Getting the physics right is the most important thing, it sounds like it still needs work.
Hopefully a UK version is on the cards. I tried to buy from the international site and with tax and postage it wanted 100Euros.......
Edit.....
I know its just eye candy but its hard to not buzz off details like the flags blowing in the wind.
http://www.youtube.com/watch?v=KAZwLM_mVzo&feature=related