There are two major types of touchscreen technologies today and those are resistive and capacitive, but they’re not the most precise or good when it comes to maintaining screen color quality or registering exact screen presses. Motorola aims to change that by working on developing a touch screen technology that relies on sound waves to register user input on the screen.

    SONAR like touch technology

    SONAR like touch technology

    Motorola announced this when it invested in the company called Sensitive Object that’s being developing this technology for a few years. What’s good about this technology is that it can transform any screen into a touch enabled one, while keeping the original quality of the screen untouched. Motorola didn’t announced when this technology might came to market, but I guess it’s at least a few years till that point. [source]