NibleVR wants to get your fingers into into virtual reality. No really, they want to harness the power of depth sensing cameras to allow you to actually use your hands in virtual three-dimensional situations. With the current tech push towards VR by Occulus and other companies, it only makes sense that we have a push to add better control interfaces.
The NimbleVR can mount on either your monitor on on the Oculus so it can track the way you are looking (see example).
Whether or not this interface will be widely adopted is going to depend on how easily the company is able to integrate this feature games. For this reason, the company has launched a Kickstarter campaign to help move this product forward.