There haven't been any direct successors to the V570, but take a look at the Kodak M580. Here's what we said about the Kodak V570 when it first hit the shelves:
Are you seeing double? Kodak's RETINA technology brings two integrated lenses to the Kodak V570, allowing users to switch effortlessly between an ultra wide-angle and 5x optical zoom lens, each with its own sensor. The dual sensors don't bulk this beauty up at all. The V570 is a fantastically slim and compact camera, and the design emulates the sleek Art Deco look of retro models. It's a stunning item both for its aesthetic attractiveness and for the innovative coupling of these two lenses. The Kodak V570 is an eyebrow raiser for sure, and is sure to set off a slew of copycats in the near future.