Lytro basically lets you shoot first, and focus later. You can also shift the perspective of the scene and switch between 2D and 3D views. Lytro does this by recording the “light field” - a totally different way of capturing photographs.
Lytro is the brainchild of Ren Ng, and is his Stanford PhD dissertation brought to life.
I love the depth of these photographs, and the ability to bring the foreground (or background) into focus and completely change the composition of the image.
I personally can’t wait to get my hands on a Lytro camera, and wish Ren and his team every success.