It's a proof of concept. People have such a lack of imagination sometimes. Down the road, transparent screens could provide some incredible advantages.Riiiight. Is this the same forum that is filled with posters endlessly bitching about glossy screens, and can't read it if it's not e-ink, and pixel density, and resolution and viewing angles...and you think seeing all the distractions through the screen is "cool"?
I'm sure some imagination-less people also thought flat screens were silly at first. ("Why pay THOUSANDS of dollars when you can just sit a thicker one on your desk anyway?? Gosh!"). Same probably went for touch screens when they were first introduced in their primitive form. Now we're carrying little flat touch screens around in our pockets.