Yeah for pc its availible. I loved it, it had its bugs and stuff but they got patch reasonably quick and with each patch usually has a few gig of added content, one of the most accurate flight physics and dynamic AI i have ever seen in game, A credit to BDG's work for sure.

Found the shot i was looking for :
http://www.game.co.uk/Games/Xbox-360/Battle-of-Britain-II/~r334571/