I heard about the Lytro Light Field camera when they came out with their first generation camera, a while ago (it now comes out that that one is basically a prototype).
Well, the one they want to call their first-generation (the Illum) is coming out in a few months.
The technology is pretty interesting; it tracks the direction from which light is incident on the sensor. There are a few more details in that article, but the short of it is that it allows capture of distance from everything shown, and can compute refocusing the image after the capture.
I'm not sure how well it will all work, but it's definitely interesting. The big drawback is that the overall level of detail is much, much lower, because it can't put the pixels as close together.
The other big plus is that it might be able to work on non-custom cameras at some point. We'll see how that works out, but I'd love to see it.
Anyway, it's available for preorder right now, if you've got $1500 burning a hole in your pocket. I don't know, but I'm certainly tempted.