In short, this is a wheel that's already been invented. I don't see anything "novel" or even better than what we have had already.
Then, with all due respect, you don't know what the word "novel" means. Something is novel when it is new or different from what has been done before. This is a thimble that sits on the user's index finger, allowing them to make 3D gestures in space. That's certainly novel compared to the 3DConexion interface, which is a knob with 6 degrees of freedom. They're clearly different devices, and accordingly, this one is novel compared to the Space Navigator.
Now, maybe what you really meant was that this isn't an improvement on the 3DConexion stuff. That, although new and different, it doesn't provide any advantages over the Space Navigator. But there, you'd be wrong, too - the Navigator requires the user to use two separate pointing devices, as well as shifting between Navigator and keyboard. The thimble, however, allows the user to make those gestures, plus dragging across a surface (which the Navigator can't do), as well as allowing the user to return to the keyboard and type without removing the device. Maybe those aren't features you'd appreciate or prefer, but they're certainly different features that the Navigator simply can't do.