This is pretty neat, the prototype was made with a 3D printer too–
Neochroma is a mobile phone attachment that puts a big screen into the palm of your hand.
The installed base of camera phones has reached 850 million in 2006. 1.5 billion are predicted for 2010 (source: Lyra Research).
While billions of shots are taken every year, tiny screens limit camera phone usage. With Neochroma, a large and vibrant image can be enjoyed instantly.
Neochroma can be used for navigation applications as well.
It is stereoscopic (that is, it shows life-like 3D), and can be built very inexpensively.
Neochroma | Vision | A Digital Stereoscopic Viewer For The Photography And Mobile Markets – Link.