The document discusses touchless touchscreen technology that allows users to control devices without physically touching the screen. It can detect hand motions from up to 15cm away using optical sensors. The technology was developed by Elliptic Labs and allows navigation on devices by pointing and gesturing in front of the screen. Applications include touchless monitors, user interfaces similar to movies like Minority Report, and a touchless SDK that uses webcams to enable touch-based apps without touching. The technology could be incorporated into computers, phones, and laptops in the future through gesture recognition.