The launch of the Lytro means you can refocus any picture you take after you've taken it.
“From today painting is dead” is an aphorism often attributed to Paul Delaroche, a 19th-century French painter, upon seeing the first daguerreotypes (though Wikipedia maintains there is no compelling evidence that he actually said it). In a way, it was a misjudgment on the same epic scale as Thomas Watson’s celebrated observation that the total world market for computers was five machines. What Delaroche was presumably getting at was that painting as a naturalistic representation of reality was terminally threatened by the arrival of the new technology of “painting with light”. If that is indeed what he meant, then he was only partly right.