I agree, eye tracking is going to have really broad applications. I've been interested in eye tracking for over a decade, and in fact built my own eye tracker, joined a startup, and got acquired by Google[1]. But there's way more to do. We've barely scratched the surface of what's possible with eye tracking and I'd love to take a second crack at it.
The "Daydream View" VR headset developed before we were acquired totally bombed. Then a bunch of VR tech, including both long running internal projects and recent acquisitions, got shelved.
[1] https://techcrunch.com/2016/10/24/google-buys-eyefluence-eye...