Assuming people will buy rF2 because it has DK2 support is a bold assumption. If someone has a dev kit now they've already purchased one of the other racing/driving games to experience. Someone who isn't a sim racer owning more than one racing title is highly unlikely. Sim racing is competitive just like first person shooters and when someone is using a dev kit and getting their arse kicked because they are looking through a screen door and can't see things until it's too late, this tech is useless for said software. I personally don't see the use of jumping on the bandwagon until a consumer(usable) version is released.