An outfit called Lytro is touting a camera that supposedly captures the entire field of light in an image. The promise of this camera is that you don't have to focus on a subject first (or really even just one subject). Their gallery demo lets you adjust the focal point of a bunch of images on the fly.
This is seriously neat, and it opens up photography to capture images with multiple contexts. A few things I'd like to know are 1) how quickly the camera can capture the image, 2) how much will it cost, and 3) when will Apple be able to drop it in my iPhone?