I'm curious as to why you think that freedom of hand motion is essential for VR. Certainly I can think of many VR experiences where it would be useful, but I can think of just as many where having discreet inputs (buttons) would be preferable.
For example, a spaceship piloting game that allows the players head to rotate and look out the windows could very easily be controlled with a traditional gamepad.
For example, a spaceship piloting game that allows the players head to rotate and look out the windows could very easily be controlled with a traditional gamepad.