Flyinside has Vive Beta support for Prepar3D and FSX

Daniel, the creator of Flyinside VR support for Preapr3D and FSX ,has done it again, this time adding Beta Vive support including a tracking system designed to track larger walkable areas.: https://flyinside-fsx.com/Download

The plan is that once out of Beta additional functionality will be added so the Vive's motion controllers will allow new ways to interact with the cockpit, while room-scale tracking will allow pilots to walk around and inspect their airplanes.

The Vive can do seated or roomscale experiences and is likely to attract ongoing interest from developers looking to push the VR boundaries.

I am not surprised that the Revive project, which lets you play Oculus exclusives on the Vive, was released before the vast majority of people even got their pre-ordered Rifts, as the Vive will attract people who like to tinker. But the Vive is a long way from perfect, it is brilliant when running but SteamVR still needs polish.

In these early days of consumer VR the Vive and Rift will likely attract slightly different audiences and there is no reason both can't be successful.

What you are talking about is called motion cancellation, subtracting the motion of the simulator from the HMD view.

Motion cancellation is not a big deal for motion simulators that use fast motion over small axis movements, I do that with my 3DOF motion simulator and Rift. The issue manifests with large axis movement simulators.

Up until now people like myself have not had access to a Vive to even begin to explore the possibility of motion cancellation. I just got my Vive. Hence my plan is to mount the controllers to the motion sim and see how easy or hard it is to do the cancellation in a generic way on the software side, though it will be fine on my rig without it.

FlyInside 1.52 has been released and adds support for Prepar3D 3.3 while making FlyInside's Leap Motion integration less performance intensive: https://flyinside-fsx.com/News?v=152