And then there's this.....
http://flyawaysimulation.com/news/43...osoft-studios/
MS Flight, similar marketing model to RoF. Free to download with a couple of aircraft and more to buy apparently. Very limited on terrain at Launch ("Spring 2012") but targeting a broader audience than hard core simmers whilst providing 'full switch' flying for those that want it.
Will be interesting. No combat of course.