Dual display laptops (e.g. Asus Screenpad) are growing in popularity. Dual displays comes with its unique interaction challenges and oppurtunities. The well established interaction paradigms in Microsoft Windows are not really designed for, nor particularly suited for such devices.
Accurate user awareness is going to be key for the success of dual display laptops and eye tracking is going to be an important recipe in that mix.
Intel wanted a demo showing how we envision gaze tracking can enable in their next generation dual display concept computer on their Honeycomb Glacier concept computer. Our eye tracking demo was extremely well received at COMPUTEX 2019.
Do not take my word for it, why not also read the reviews from
Verge ("I have never wanted eye tracking so badly"),
PCGamer ("this was the only worthwhle implementation of eye tracking I have seen"), and
CNET ("the most impressive feature is eye tracking").