Bootstrapping a non-touch device for touch isn't really a novel idea though. There were, historically, lots of attempts, especially after the iPhone/iPad releas

Bootstrapping a non-touch device for touch isn't really a novel idea though. There were, historically, lots of attempts, especially after the iPhone/iPad release. Here's a more recent (commercialized) one: https://air.bar/pc https://air.bar/pc and here's one from 2008: https://web.archive.org/web/20080709071620/http://www.magictouch.com/addon.html https://web.archive.org/web/20080709071620/http://www.magict... ... Here's a 2012 hands-on preview of a product from Leap Motion: https://www.theverge.com/2012/6/26/3118592/leap-motion-gesture-controls https://www.theverge.com/2012/6/26/3118592/leap-motion-gestu... . Here's a product using Kinect to add multi-touch functionality to a radiology viewer:https://www.gestsure.com/ https://www.gestsure.com/ It's all been done before. Again, fun DIY project, limited commercial value.