I just got back from the Hobby Visions show in Vegas and spent a decent amount of time on AFP, Reflex and G3! The G3 was still a Beta version and didn't have full funcionality but I can tell you the physics are every bit as good or better than AFP. The field I was flying on was huge and the graphics were excellent. You could see the background reflected off the Monocote of the plane up close and the flying was very realistic. It doesn't have the photograph background like Reflex but flew more realistically and the interface is excellent. The airplane editing is somewhat like a CAD program and there was way more features than I could explore in the hour or so I spent playing with it.

I was told there isn't going to be an upgrade but a rebate program is being worked on. Add-ons will work and making new planes and graphics will be much easier.

One thing I tried and seemed to work was landing on the side of a building (hovering up to it and touching the wheels). When I did it wrong and touched the wing or canopy it crashed but the wheels would sit against the building. Has anyone tried this with the other sims?