[downrightmike]

Isn't this just the same tech as the first Nintendo Power Glove had? https://www.youtube.com/watch?v=3g8JiGjRQNE

They put light down a tube and then measured the light to trigger a key press. That's why bending your fingers/hand did anything. The revised the mechanism in the later generations.

[Doxin]

I think at least one novelty here is that there's multiple "bend points" it can detect without needing a fiber for each bend point.