A better touch based technology?

From Apple's iPhone / iPod Touch to Microsoft's Surface PC, everyone is striving to change the way we interact with our devices and it seems that touch screen is the way to go. One big drawback to touch screen is that your hand momentarily obscures your view as you invoke action on the screen. Researchers at Mitsubishi, Microsoft, and the University of Toronto have teamed up to tackle this problem. Their answer appears to lie in a new technology dubbed LucidTouch, "users can choose to manipulate objects by touching a sensor pad on the back of the device; this allows users to resize images and text, as well as navigate around any graphical user interface without their hands getting in the way of the display." ars technica had an opportunity to view the prototype and has an article chronicling the experience.