I'm pretty surprised that they don't have a "play with the focus" widget on the homepage. It took me too many clicks to find out why I needed this camera.
Fun times. Too bad the science requires a deep back... would be awesome to have this technology in your cellphone... hopefully we're just a few years away. Technology is amazing.
It's most probably the only one where an optical zoom would fit. A quite ingenious solution. A periscope-like mount would also be viable for cellphones - it would still be at least twice as large as a common camera, but it wouldn't be much deeper.