This + a video of people playing 'Job Simulator' have me wanting to cancel my Oculus Rift preorder and get a Vive instead.
Platform exclusives will be the bane of VR. When I see interesting exclusives X on Vive, Y on Oculus and Z on Playstation VR, I won't buy all three platforms. I'll just say 'screw you all, I'll pass'.
When Oculus releases its Touch controllers (hopefully before the end of the year?) you might see Vive titles ported over to Rift. Movement in the other direction depends on what terms and conditions are in the contracts studios agreed to sign.